CN220636965U

CN220636965U - Positioning fixture for lever hanging seat of train braking system

Info

Publication number: CN220636965U
Application number: CN202321591338.XU
Authority: CN
Inventors: 赵野
Original assignee: Jinzhou Jietong Railway Machinery Co ltd
Current assignee: Jinzhou Jietong Railway Machinery Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-03-22
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a positioning clamp for a lever hanging seat of a train braking system, which comprises the following components: the plurality of horizontal positioning blocks are respectively abutted to the first connecting plate of the lever hanging seat and the bottom of the hanging barrel; the positioning pin is fixed at the top of the bottom plate and is abutted against the side surface, close to the rib plate, of the first connecting plate; the centering clamp is fixed at the top of the bottom plate, is arranged between the two rib plates and is abutted with the side walls of the two rib plates; the auxiliary supporting piece is fixed at the top of the bottom plate and is abutted to the bottom of the second connecting plate; the clamp plate subassembly is equipped with a plurality ofly, and clamp plate subassembly's bottom and bottom plate fixed connection, top respectively with first connecting plate, second connecting plate and hoist and mount section of thick bamboo's top looks butt. The positioning clamp is accurate in positioning, firm in clamping and not easy to vibrate in the machining process.

Description

Positioning fixture for lever hanging seat of train braking system

Technical Field

The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for a lever hanging seat of a train braking system.

Background

Train braking is the artificial stopping of the movement of a train, including slowing it down, not accelerating or stopping the movement. Releasing or weakening the braking action of a braked train or locomotive is referred to as "relieving". A complete set of equipment mounted on a train for the application and alleviation of brakes is generally referred to as the "brake rigging" of the train.

The lever hanger is one of the relatively important components of the brake device, which plays a significant traction role in the overall brake system. However, the traditional processing mode of the lever hanging seat is finished by a vertical processing center and is divided into three vertical processing procedures; the first vertical machining procedure is to position the blank, and when in machining, the blank is firstly marked, and the machining is performed by alignment according to the line, thus the labor and time are wasted, and the positioning is inaccurate; when each working procedure is processed, the pressing plate is at a certain distance from the processing hole, and no auxiliary support exists, so that a vibrating knife can be generated; the traditional tooling is used for processing in sequence, and accumulated errors tend to be generated, so that the precision of processed products is affected; the traditional tool is provided with only two pressing plates, so that clamping is unstable.

Therefore, the positioning fixture for the lever hanging seat of the train braking system, which is accurate in positioning, firm in clamping and difficult to vibrate, is researched and is a problem to be solved by a person skilled in the art.

Disclosure of Invention

In view of the above, the utility model provides the positioning fixture for the lever hanging seat of the train brake system, which has accurate positioning, firm clamping and difficult occurrence of vibration knife.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a positioning fixture for a lever hanger bracket of a train brake system comprising:

the bottom plate is provided with a bottom plate,

the plurality of horizontal positioning blocks are arranged and are fixed at the top of the bottom plate, and the plurality of horizontal positioning blocks are respectively abutted to the first connecting plate of the lever hanging seat and the bottom of the hanging barrel;

the positioning pin is fixed at the top of the bottom plate and is abutted against the side surface, close to the rib plate, of the first connecting plate;

the centering clamp is fixed at the top of the bottom plate, is arranged between the two rib plates and is abutted against the side walls of the two rib plates;

the auxiliary support piece is fixed at the top of the bottom plate and is abutted to the bottom of the second connecting plate;

the clamp plate subassembly, the clamp plate subassembly is equipped with a plurality of, the bottom of clamp plate subassembly with bottom plate fixed connection, top respectively with first connecting plate, second connecting plate and the top looks butt of hoist and mount section of thick bamboo.

The technical scheme has the beneficial effects that the locating pin can locate the X-axis direction of the lever hanging seat, so that the lever hanging seat is prevented from moving in series during processing; the centering clamp can position the rotation angle of the lever hanging seat, and the auxiliary support can prevent the lever hanging seat from vibrating during processing.

Preferably, three horizontal positioning blocks are arranged, wherein two horizontal positioning blocks are abutted to two ends of the bottom of the first connecting plate, and the other horizontal positioning block is abutted to the bottom of the hoisting barrel; the auxiliary support pieces are arranged at two ends and respectively abutted to the two ends of the bottom of the second connecting plate. The height of the horizontal positioning blocks positioned at the bottom of the hoisting cylinder is higher than that of the other two horizontal positioning blocks, so that the lever hanging seat can be accurately positioned horizontally, and the machining precision of the lever hanging seat can be ensured.

Preferably, a fixing seat is fixed at the bottom of the positioning pin, and the fixing seat is fixed at the top of the bottom plate. The height of the locating pin can be adjusted through the arrangement of the fixing seat, so that the locating pin can more accurately locate the lever hanging seat.

Preferably, the centering clamp comprises: the clamping jaw comprises a base, a clamping jaw, a fixing block and a screw; the bottom of the base is fixedly connected with the bottom plate, and the top of the base is provided with a chute; the two fixing blocks are respectively fixed at two ends of the chute; the clamping jaws are arranged in two and are arranged between the two fixed blocks side by side, and the bottoms of the clamping jaws are arranged in the sliding grooves and are in sliding connection with the side walls of the sliding grooves; the screw rod runs through two fixed blocks and clamping jaws, the screw rod is in threaded connection with the clamping jaws, and the screw rod moves in the fixed blocks. The two clamping jaws can be driven to move in opposite directions by rotating the screw rod, so that clamping and positioning of the lever hanging seat can be conveniently realized.

Preferably, one side of the clamping jaw, which is close to the rib plate, is provided with an inclined surface and is matched with the shape of the surface of the rib plate.

Preferably, the platen assembly includes: the first pressing plate assembly is simultaneously abutted to the tops of the first connecting plate and the second connecting plate, and the two first pressing plate assemblies are respectively positioned at two ends of the first connecting plate and the second connecting plate; the second pressing plate assembly is abutted to the top of the hoisting barrel. The first pressing plate assembly and the second pressing plate assembly can compress tightly the tops of the first connecting plate, the second connecting plate and the hoisting cylinder, and therefore the structure is more stable in the lever hanging seat machining process.

Preferably, the first platen assembly includes: the first support seat, the first pressing plate and the first support rod; the first supporting seat is fixed at the top of the bottom plate, and first steps are arranged on two sides, close to the first connecting plate and the second connecting plate, of the top of the first supporting seat; the first support rods are provided with two first support rods which are respectively fixed at the tops of the two first steps; the two first pressing plates are arranged, a first waist-shaped hole is formed in the top of each first pressing plate, and the top of each first supporting rod penetrates through each first waist-shaped hole to be fixedly connected with each first pressing plate; one end of the first pressing plate is abutted to the top of the first connecting plate or the second connecting plate, and the other end of the first pressing plate is arranged on the top of the first supporting seat; the top of first supporting seat is followed the length direction of first clamp plate has seted up first recess, just the both ends of first recess are the opening form, first clamp plate with the one end that first supporting seat contacted is arranged in the first recess. Two first clamp plates of first supporting seat both sides can be connected first connecting plate and second connecting plate simultaneously to the top of first supporting seat can also play the effect that supports two first clamp plates's tip, guarantees that first clamp plate can be accurate compress tightly the location to first connecting plate and second connecting plate.

Preferably, the second platen assembly includes: the second supporting seat, the second pressing plate and the second supporting rod; a second step is arranged on one side, close to the hoisting barrel, of the top of the second supporting seat; the second support rod is fixed at the top of the second step, a second waist-shaped hole is formed in the top of the second pressing plate, and the top of the second support rod penetrates through the second waist-shaped hole to be fixedly connected with the second pressing plate; one end of the second pressing plate is abutted to the top of the hoisting cylinder, and the other end of the second pressing plate is arranged on the top of the second supporting seat; the top of second supporting seat is followed the length direction of second clamp plate has seted up the second recess, just the both ends of second recess are the opening form, the second clamp plate with the one end that the second supporting seat contacted is arranged in the second recess. The top of second supporting seat can play the supporting role to the tip of second clamp plate for the second clamp plate can be more accurate fix a position hoist and mount section of thick bamboo.

Compared with the prior art, the utility model discloses the positioning clamp for the lever hanging seat of the train braking system, which has the beneficial effects that:

(1) According to the utility model, the positioning pin can position the X-axis direction of the lever hanging seat, so that the lever hanging seat is prevented from moving in series during processing; the centering clamp can position the rotation angle of the lever hanging seat, and the combined action of the positioning pin and the centering clamp can ensure the stability of the lever hanging seat in the processing process;

(2) The combined action of the auxiliary support and the pressing plate component can prevent the vibration of the lever hanging seat during processing, ensure the stability of the lever hanging seat during processing and improve the processing accuracy;

(3) The positioning clamp can process the lever hanging seat after one-time clamping, so that the processing efficiency is greatly improved; and the tool is finished by one-time processing, so that the processing precision of the product is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structure of a positioning clamp and a lever hanging seat for clamping;

FIG. 2 is a top view of a positioning clamp and a lever hanger bracket according to the present utility model;

FIG. 3 is a schematic diagram of the structure of the positioning fixture and the clamping plate provided by the utility model;

FIG. 4 is a schematic structural view of a positioning fixture according to the present utility model;

FIG. 5 is an enlarged view of the structure shown at A in FIG. 4, provided by the present utility model;

fig. 6 is a top view of the positioning fixture provided by the utility model.

Wherein, in the drawing,

1-a bottom plate;

11-clamping grooves;

2-a horizontal positioning block; 3-locating pins;

4-centering clamp;

41-a base; 42-clamping jaw; 43-a fixed block; 44-screw; 45-sliding grooves;

5-auxiliary supports;

a 6-platen assembly;

61-a first platen assembly;

611-a first support base; 612-a first platen; 613-a first support bar; 614-first step; 615-a first waist-shaped aperture; 616-first groove;

62-a second platen assembly;

621-a second support seat; 622-a second platen; 623-a second support bar; 624-a second step; 625-second waist-shaped hole; 626-a second groove;

7-fixing seats;

8-a lever hanging seat;

81-a first connection plate; 82-hoisting a cylinder; 83-rib plates; 84-a second connection plate;

9-clamping plates; 10-a clamping plate seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model discloses a positioning clamp for a lever hanging seat of a train braking system, which comprises the following components:

the base plate 1 is provided with a plurality of grooves,

the plurality of horizontal positioning blocks 2 are arranged and are fixed on the top of the bottom plate 1, and the plurality of horizontal positioning blocks 2 are respectively abutted to the bottoms of the first connecting plate 81 of the lever hanging seat 8 and the hanging barrel 82;

the positioning pin 3 is fixed on the top of the bottom plate 1, and the positioning pin 3 is abutted against the side surface, close to the rib plate 83, of the first connecting plate 81;

the centering clamp 4 is fixed on the top of the bottom plate 1, and the centering clamp 4 is arranged between the two rib plates 83 and is abutted against the side walls of the two rib plates 83;

the auxiliary supporting piece 5 is fixed on the top of the bottom plate 1 and is abutted against the bottom of the second connecting plate 84;

the clamp plate subassembly 6, clamp plate subassembly 6 are equipped with a plurality of, and clamp plate subassembly 6's bottom and bottom plate 1 fixed connection, top respectively with first connecting plate 81, second connecting plate 84 and the top looks butt of hoist and mount section of thick bamboo 82. The top of the auxiliary support 5 is provided with a bolt, and the height of the auxiliary support can be adjusted by manually adjusting the bolt. As shown in fig. 1, after the lever hanging seat 8 is installed, clamping plates 9 are respectively arranged at two ends of one side, far away from the rib plate 83, of the first connecting piece 81, two ends of one side, far away from the rib plate 83, of the second connecting piece 84, and two end faces of the hanging barrel 82, a clamping plate seat 10 is fixed at the bottom of the clamping plate 9, a clamping groove 11 is formed in the position, corresponding to the clamping plate seat 10, of the top of the bottom plate 1, and the clamping plate seat 10 is arranged in the clamping groove 11. The clamping plate 9 is used for positioning the positioning clamp and the blank piece of the lever hanging seat 8, so that the generation of waste pieces can be effectively prevented.

In order to further optimize the technical scheme, three horizontal positioning blocks 2 are arranged, wherein two horizontal positioning blocks 2 are abutted to two ends of the bottom of the first connecting plate 81, and the other horizontal positioning block 2 is abutted to the bottom of the lifting cylinder 82; the auxiliary supporting pieces 5 are provided with two auxiliary supporting pieces and respectively abut against two ends of the bottom of the second connecting plate 84. The auxiliary supporting pieces 5 are arranged at two ends of the second connecting plate 84, so that the lever hanging seat 8 can be supported more accurately, and the vibration of a cutter during processing can be prevented better.

In order to further optimize the above technical solution, a fixing seat 7 is fixed at the bottom of the positioning pin 3, and the fixing seat 7 is fixed at the top of the bottom plate 1.

In order to further optimize the above technical solution, the centering clamp 4 comprises: a base 41, a clamping jaw 42, a fixed block 43 and a screw 44; the bottom of the base 41 is fixedly connected with the bottom plate 1, and the top is provided with a chute 45; the two fixing blocks 43 are respectively fixed at two ends of the chute 45; the clamping jaw 42 is provided with two clamping jaws and is arranged between the two fixing blocks 43 side by side, and the bottom of the clamping jaw 42 is arranged in the sliding groove 45 and is in sliding connection with the side wall of the sliding groove 45; the screw 44 penetrates through the two fixed blocks 43 and the clamping jaw 42, the screw 44 is in threaded connection with the clamping jaw 42, and the screw 44 moves in the fixed blocks 43. The fixed block 43 plays a role in supporting the screw 44, and the clamping jaw 42 can correspondingly move in the chute 45 under the rotation of the screw 44, so that the two rib plates 93 can be clamped and disassembled conveniently.

In order to further optimize the above technical solution, the side of the clamping jaw 42 close to the rib plate 83 is inclined and matches with the shape of the surface of the rib plate 83. The shape and structure of the contact surface of the clamping jaw 42 and the rib plate 83 are matched, so that the contact area of the clamping jaw 42 and the rib plate 83 can be ensured to be larger, and the positioning is more accurate.

To further optimise the above solution, the platen assembly 6 comprises: the first pressing plate assembly 61 and the second pressing plate assembly 62, the first pressing plate assembly 61 is simultaneously abutted against the tops of the first connecting plate 81 and the second connecting plate 84, and the first pressing plate assembly 61 is provided with two pressing plates which are respectively positioned at two ends of the first connecting plate 81 and the second connecting plate 84; the second platen assembly 62 abuts the top of the hoist cylinder 82.

To further optimize the above solution, the first platen assembly 61 comprises: a first supporting seat 611, a first pressing plate 612 and a first supporting rod 613; the first supporting seat 611 is fixed on the top of the bottom plate 1, and the two sides of the top of the first supporting seat 611, which are close to the first connecting plate 81 and the second connecting plate 84, are provided with first steps 614; the first support rod 613 is provided with two first steps 614, which are respectively fixed on the tops of the two first steps; the two first pressing plates 612 are arranged, a first waist-shaped hole 615 is formed in the top of the first pressing plate 612, and the top of the first supporting rod 613 penetrates through the first waist-shaped hole 615 to be fixedly connected with the first pressing plate 612; one end of the first pressing plate 612 is abutted against the top of the first connecting plate 81 or the second connecting plate 84, and the other end of the first pressing plate is arranged on the top of the first supporting seat 611; the top of the first supporting seat 611 is provided with a first groove 616 along the length direction of the first pressing plate 612, two ends of the first groove 616 are open, and one end of the first pressing plate 612, which is contacted with the first supporting seat 611, is arranged in the first groove 616. The first waist-shaped holes 615 are arranged to facilitate corresponding adjustment of the positions of the first pressing plates 612, the first supporting rods 613 and the first pressing plates 612 are fixed through nuts, and torsion is provided at the connection parts after the fixing, so that the holes are not deformed in the machining process; specifically, the torque wrench can adjust the force, so that the force applied to the first pressing plate 612 can be controlled, for example, the force is too small, the workpiece is easy to loosen during processing, for example, the force is too large, and the elastic force is applied to deform the hole after the first pressing plate 612 is loosened. The torque wrench can make the acting force in a reasonable range, and the problem of hole deformation does not exist. The first recess 616 is provided to facilitate adjusting the position of the first pressing plate 612 on the top of the first supporting seat 611.

To further optimize the above solution, the second platen assembly 62 includes: a second support seat 621, a second pressing plate 622, and a second support bar 623; a second step 624 is arranged on one side of the top of the second supporting seat 621, which is close to the lifting barrel 82; the second support rod 623 is fixed at the top of the second step 624, a second waist-shaped hole 625 is formed at the top of the second pressing plate 622, and the top of the second support rod 623 passes through the second waist-shaped hole 625 to be fixedly connected with the second pressing plate 622; one end of the second pressing plate 622 is abutted against the top of the lifting cylinder 82, and the other end of the second pressing plate is arranged on the top of the second supporting seat 621; the top of the second supporting seat 621 is provided with a second groove 626 along the length direction of the second pressing plate 622, two ends of the second groove 626 are open, and one end of the second pressing plate 622, which is in contact with the second supporting seat 621, is arranged in the second groove 626.

Positioning and clamping:

firstly, placing a workpiece on the top of a horizontal positioning block 2, pushing a lever hanging seat 8 to a positioning pin 3, and tightly pushing the lever hanging seat 8 through the positioning pin 3; then the screw 44 is rotated to enable the clamping jaw 42 to clamp the rib plate 83; then, the auxiliary supporting piece 5 is adjusted to prop against the bottom of the second connecting plate 84, and finally the first pressing plate 612 and the second pressing plate 622 are adjusted to press the lever hanging seat 8, so that the lever hanging seat 8 is positioned and clamped.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning fixture for a lever hanger of a train brake system, comprising:

a bottom plate (1),

the horizontal positioning blocks (2) are arranged, the horizontal positioning blocks (2) are fixed on the top of the bottom plate (1), and the horizontal positioning blocks (2) are respectively abutted to the bottoms of the first connecting plate (81) of the lever hanging seat (8) and the hanging barrel (82);

the positioning pin (3) is fixed at the top of the bottom plate (1), and the positioning pin (3) is abutted against the side surface, close to the rib plate (83), of the first connecting plate (81);

the centering clamp (4) is fixed at the top of the bottom plate (1), and the centering clamp (4) is arranged between the two rib plates (83) and is abutted against the side walls of the two rib plates (83);

-an auxiliary support (5), the auxiliary support (5) being fixed to the top of the bottom plate (1) and abutting against the bottom of the second connection plate (84);

the clamp plate subassembly (6), clamp plate subassembly (6) are equipped with a plurality of, the bottom of clamp plate subassembly (6) with bottom plate (1) fixed connection, top respectively with first connecting plate (81), second connecting plate (84) and hoist and mount top looks butt of section of thick bamboo (82).

2. The positioning fixture of a lever hanger of a train brake system according to claim 1, wherein three horizontal positioning blocks (2) are provided, two of the horizontal positioning blocks (2) are abutted against two ends of the bottom of the first connecting plate (81), and the other horizontal positioning block (2) is abutted against the bottom of a hanging barrel (82); the auxiliary supporting pieces (5) are arranged at two ends and respectively abut against the two ends of the bottom of the second connecting plate (84).

3. Positioning fixture for a lever hanger of a train brake system according to claim 1 or 2, characterized in that the bottom of the positioning pin (3) is fixed with a fixing seat (7), the fixing seat (7) being fixed to the top of the bottom plate (1).

4. Positioning clamp for a lever hanger of a train brake system according to claim 1, characterized in that said centering clamp (4) comprises: a base (41), a clamping jaw (42), a fixed block (43) and a screw (44); the bottom of the base (41) is fixedly connected with the bottom plate (1), and the top of the base is provided with a chute (45); the two fixing blocks (43) are respectively fixed at two ends of the sliding groove (45); the clamping jaws (42) are arranged in two and are arranged between the two fixing blocks (43) side by side, and the bottoms of the clamping jaws (42) are arranged in the sliding grooves (45) and are in sliding connection with the side walls of the sliding grooves (45); the screw (44) penetrates through the two fixed blocks (43) and the clamping jaw (42), the screw (44) is in threaded connection with the clamping jaw (42), and the screw (44) moves in the fixed blocks (43).

5. The positioning fixture for a lever hanger bracket of a train brake system as claimed in claim 4 wherein the side of the jaw (42) adjacent to the web (83) is inclined and matches the shape of the surface of the web (83).

6. A positioning jig for a lever hanger for a train brake system according to claim 1 wherein said pressure plate assembly (6) comprises: the first pressing plate assembly (61) and the second pressing plate assembly (62), the first pressing plate assembly (61) is simultaneously abutted to the tops of the first connecting plate (81) and the second connecting plate (84), and the first pressing plate assembly (61) is provided with two pressing plates which are respectively positioned at two ends of the first connecting plate (81) and the second connecting plate (84); the second pressing plate assembly (62) is abutted to the top of the lifting cylinder (82).

7. The positioning jig for a lever hanger bracket of a train brake system of claim 6 wherein said first pressure plate assembly (61) comprises: a first support base (611), a first pressing plate (612), and a first support bar (613); the first supporting seat (611) is fixed at the top of the bottom plate (1), and first steps (614) are arranged on two sides, close to the first connecting plate (81) and the second connecting plate (84), of the top of the first supporting seat (611); the first support rods (613) are respectively fixed at the tops of the two first steps (614); the two first pressing plates (612) are arranged, a first waist-shaped hole (615) is formed in the top of each first pressing plate (612), and the top of each first supporting rod (613) penetrates through each first waist-shaped hole (615) to be fixedly connected with each first pressing plate (612); one end of the first pressing plate (612) is abutted against the top of the first connecting plate (81) or the second connecting plate (84), and the other end of the first pressing plate is arranged on the top of the first supporting seat (611); the top of the first supporting seat (611) is provided with a first groove (616) along the length direction of the first pressing plate (612), two ends of the first groove (616) are in an opening shape, and one end, contacted with the first supporting seat (611), of the first pressing plate (612) is arranged in the first groove (616).

8. A positioning jig for a lever hanger for a train brake system as claimed in claim 6 or 7 wherein said second pressure plate assembly (62) comprises: a second support base (621), a second pressing plate (622), and a second support rod (623); a second step (624) is arranged on one side, close to the lifting barrel (82), of the top of the second supporting seat (621); the second supporting rod (623) is fixed at the top of the second step (624), a second waist-shaped hole (625) is formed in the top of the second pressing plate (622), and the top of the second supporting rod (623) penetrates through the second waist-shaped hole (625) to be fixedly connected with the second pressing plate (622); one end of the second pressing plate (622) is abutted to the top of the lifting cylinder (82), and the other end of the second pressing plate is arranged on the top of the second supporting seat (621); the top of second supporting seat (621) is followed length direction of second clamp plate (622) has seted up second recess (626), just the both ends of second recess (626) are the opening form, second clamp plate (622) with the one end that second supporting seat (621) contacted is arranged in second recess (626).