Multifunctional positioning clamp for cutting parts of rail vehicle

Abstract

The utility model discloses a kind of multifunctional positioning fixtures for cutting railcar parts, including fixture table, the top of the fixture table is provided with clamping assembly, the top inside the fixture table is provided with control assembly, the clamping assembly includes sliding slot, sliding block, connecting pipe, clamping block A, clamping block B and spring A, the sliding slot is opened with two groups, two groups The sliding slot is located at the two sides of the top of fixture table;The utility model is through the cooperation between prompt light, groove, guide slot, movable block, spring B, sleeve, electric contact block A and electric contact block B, so that device can be through the elastic movement of movable block when clamping railcar parts, detect whether there is gap between two sets of clamps and workpiece, when workpiece clamping, can automatically start prompt light to prompt, ensure the clamping stability to processing part, prevent the displacement vibration phenomenon such as processing part due to insufficient clamping force of clamp, affect cutting precision.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a multi-functional positioning fixture for cutting railway passenger car parts. Background Technology

[0002] In the field of rail passenger vehicle manufacturing, the machining quality of parts directly affects the safety, reliability and operation performance of the whole vehicle. With the rapid development of the rail transportation industry, higher requirements have been put forward for the machining accuracy, production efficiency and product consistency of rail passenger vehicle parts. Positioning fixtures, as key process equipment to ensure machining quality, play a decisive role in their performance.

[0003] The existing patent with authorization announcement number "CN214771589U" discloses a positioning fixture for machining the axle box swing arm of a rail passenger car. It includes a base plate, on which horizontal positioning seats and a chuck are mounted, arranged front and rear. A positioning plate is mounted at the rear of the horizontal positioning seats, and positioning holes are provided on the positioning plate arranged in the left-right direction. The chuck's jaws face vertically upwards. First pressure plates are bolted to the left and right sides in front of the horizontal positioning seats on the base plate, with the two first pressure plates pointing towards each other. Second pressure plates are bolted to the left and right sides behind the chuck on the base plate, with the two second pressure plates pointing towards the chuck's axis. Its positioning operation is simple, time-saving, labor-saving, and has high processing efficiency. The positioning structure is robust, the processing accuracy is high, and the product qualification rate is high.

[0004] However, this device has the following shortcomings:

[0005] 1. During cutting, insufficient clamping force of the fixture can cause displacement and vibration of the parts, which not only reduces the machining accuracy, but may also cause problems such as tool damage and equipment failure. The above-mentioned device lacks the function of indicating the position of the fixture, which makes it impossible for the fixture to clamp the cutting workpiece accurately, thus reducing the cutting stability of the rail passenger car parts.

[0006] 2. When machining parts, a lot of cutting chips are generated. The chips accumulate on the machining table, which accelerates the wear of the cutting tools. They also stick to the fixture and cause gaps between the fixture and the parts, affecting the clamping effect. Therefore, the chips need to be cleaned regularly. However, the fixtures mentioned above have a single clamping function and cannot automatically clean the cutting chips, which reduces the effectiveness of use. Utility Model Content

[0007] The purpose of this utility model is to provide a multi-functional positioning fixture for cutting railway passenger car parts, so as to solve the existing problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional positioning fixture for cutting railway passenger car parts, comprising a fixture table, a clamping assembly on the top of the fixture table, and a control assembly on the top inside the fixture table;

[0009] The clamping assembly includes a slide groove, a slider, a connecting tube, a clamping block A, a clamping block B, and a spring A. The slide groove is provided in two sets, and the two sets of slide grooves are located on both sides of the top of the fixture table. The slider is slidably connected to the inner side of the two sets of slide grooves. The connecting tube is provided on the inner side of the two sets of sliders. The clamping block A and the clamping block B are respectively provided on the top of the two sets of connecting tubes. The spring A is provided on the side of the two sets of sliders that are close to each other.

[0010] The control component includes a turntable, an external gear ring, an elliptical groove, pulleys, and a drive component. The turntable is fitted onto the top of the fixture table. An external gear ring is provided on the outer side of the turntable, and an elliptical groove is provided on the inner side of the turntable. Pulleys that cooperate with the elliptical grooves are provided on the outer sides of the two sets of connecting pipes. A drive component that cooperates with the external gear ring is provided on one side of the bottom of the fixture table.

[0011] The clamping block A is equipped with a dust removal component inside, and the clamping block B is equipped with a positioning reminder component on its top.

[0012] Preferably, the dust removal assembly includes a suction pipe, a notch, a filter box, a guide pipe, a vacuum cleaner, and a filter screen. The suction pipe is located inside the clamping block A. One side of the clamping block A has multiple notches connected to the suction pipe. The bottom of the fixture platform, away from the drive assembly, has a filter box. The top of the filter box has a guide pipe connected to the suction pipe, and the guide pipe passes through a set of connecting pipes. One side of the fixture platform has a vacuum cleaner. The input end of the vacuum cleaner is connected to the filter box, and the output end of the vacuum cleaner has an exhaust pipe. The filter box contains a filter screen, which can automatically suck the debris generated during cutting into the filter box for collection.

[0013] Preferably, the positioning reminder component includes an indicator light, a groove, a guide groove, a movable block, a spring B, a sleeve, an electrical contact A, and an electrical contact B. The indicator light is located on the top of the clamping block B. A groove is formed on one side of the clamping block B. A guide groove is fitted on one side of the inner side of the groove. A movable block that matches the groove is provided on one side of the guide groove. A spring B is fitted on the outer side of the guide groove. A sleeve is provided on the side of the clamping block B away from the groove. One side of the guide groove extends to the inner side of the sleeve and is provided with an electrical contact A. An electrical contact B that mates with the electrical contact A is provided on one side inside the sleeve. The indicator light can be activated to provide a reminder after the workpiece is clamped.

[0014] Preferably, the driving assembly includes a motor rod and a gear. A motor is provided on one side of the bottom of the fixture table, and a rotating rod is provided at the output end of the motor. A gear that meshes with an external gear ring is provided at the top of the rotating rod, which can drive the turntable to rotate.

[0015] Preferably, the top of the fixture table is provided with an annular guide groove, and the top of the turntable is provided with two sets of guide blocks that cooperate with the annular guide groove to guide the turntable and improve its rotational stability.

[0016] Preferably, a collection box is provided at the bottom of the filter box, and a door connected to the filter box is provided at one end of the clamping platform to facilitate the centralized cleaning of debris.

[0017] Compared with the prior art, the beneficial effects of this utility model are: a multi-functional positioning fixture for cutting railway passenger car parts;

[0018] 1. Through the cooperation of the indicator light, groove, guide groove, movable block, spring B, sleeve, electrical contact A and electrical contact B, the device can detect whether there is a gap between the two sets of clamps and the workpiece when clamping railcar parts. When the workpiece is clamped, the indicator light can be automatically activated to provide a reminder, ensuring the clamping stability of the processed parts and preventing displacement and vibration of the processed parts due to insufficient clamping force, which would affect the cutting accuracy.

[0019] 2. Through the cooperation of the suction pipe, notch, filter box, guide pipe, vacuum cleaner and filter screen, the device can collect cutting debris into the filter box by opening a notch on the clamping block A when cutting parts. This prevents the debris from accumulating on the top of the fixture table and causing accelerated tool wear. It realizes automatic cleaning of machining debris, improves the functionality of the device and makes it more convenient to use. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is a front sectional view of the present invention;

[0022] Figure 3 This is a bottom sectional view of the present invention;

[0023] Figure 4 This is a top sectional view of the clamping block A of this utility model;

[0024] Figure 5 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0025] In the diagram: 1. Fixture table; 2. Clamping assembly; 21. Slide groove; 22. Slider; 23. Connecting pipe; 24. Clamping block A; 25. Clamping block B; 26. Spring A; 3. Control assembly; 31. Turntable; 32. External gear ring; 33. Elliptical groove; 34. Pulley; 35. Drive assembly; 4. Dust removal assembly; 41. Suction pipe; 42. Notch; 43. Filter box; 44. Guide pipe; 45. Vacuum cleaner; 46. Filter screen; 5. Position reminder assembly; 51. Indicator light; 52. Groove; 53. Guide groove; 54. Movable block; 55. Spring; 56. Sleeve; 57. Electrical contact block A; 58. Electrical contact block B. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides an embodiment of a multi-functional positioning fixture for cutting rail passenger vehicle parts, comprising a fixture table 1, a clamping assembly 2 on the top of the fixture table 1, and a control assembly 3 on the top inside the fixture table 1.

[0028] The clamping assembly 2 includes a slide 21, a slider 22, a connecting tube 23, a clamping block A24, a clamping block B25, and a spring A26. The slide 21 has two sets, which are located on both sides of the top of the fixture table 1. The slider 22 is slidably connected to the inner side of the two sets of slide 21. The connecting tube 23 is provided on the inner side of the two sets of sliders 22. The clamping block A24 and the clamping block B25 are respectively provided on the top of the two sets of connecting tubes 23. The spring A26 is provided on the side of the two sets of sliders 22 that are close to each other.

[0029] The control component 3 includes a turntable 31, an external gear ring 32, an elliptical groove 33, a pulley 34, and a drive component 35. The turntable 31 is fitted onto the top of the fixture table 1. An annular guide groove is provided on the top of the fixture table 1. Two sets of guide blocks that cooperate with the annular guide groove are provided on the top of the turntable 31 to guide the turntable 31 and improve its rotational stability. An external gear ring 32 is provided on the outer side of the turntable 31, and an elliptical groove 33 is provided on the inner side of the turntable 31. Pulleys 34 that cooperate with the elliptical groove 33 are provided on the outer side of the two sets of connecting pipes 23. A drive component 35 that is in transmission cooperation with the external gear ring 32 is provided on one side of the bottom of the fixture table 1.

[0030] The drive assembly 35 includes a motor rod and a gear. A motor is provided on one side of the bottom of the fixture table 1, and a rotating rod is provided at the output end of the motor. A gear that meshes with the external gear ring 32 is provided at the top of the rotating rod, which can drive the turntable 31 to rotate. After the motor is started, the rotating rod can be driven to rotate by the motor, and then the rotating rod drives the gear. Through the meshing of the gear and the external gear ring 32, the turntable 31 can be driven to rotate.

[0031] The clamping block A24 is equipped with a dust removal component 4, which includes a suction pipe 41, a notch 42, a filter box 43, a guide pipe 44, a vacuum cleaner 45, and a filter screen 46. The suction pipe 41 is located inside the clamping block A24. One side of the clamping block A24 has multiple notches 42 that communicate with the suction pipe 41. The bottom of the clamping platform 1, away from the drive component 35, is equipped with a filter box 43. The top of the filter box 43 is equipped with a guide pipe 44 that communicates with the suction pipe 41, and the guide pipe 44 passes through a set of connecting pipes 23. However, a vacuum cleaner 45 is installed on one side inside the fixture table 1. The input end of the vacuum cleaner 45 is connected to the filter box 43, and the output end of the vacuum cleaner 45 is equipped with an exhaust pipe. The filter box 43 is equipped with a filter screen 46 inside, and a collection box is installed at the bottom inside the filter box 43. One end of the fixture table 1 is equipped with a door that communicates with the filter box 43, which facilitates the centralized cleaning of debris. The debris can be collected in the collection box. The door can be opened later to remove the collection box and clean the collected debris. The debris generated during cutting can be automatically sucked into the filter box 43 for collection.

[0032] The clamping block B25 is provided with a positioning reminder component 5 on its top. The positioning reminder component 5 includes an indicator light 51, a groove 52, a guide groove 53, a movable block 54, a spring B55, a sleeve 56, an electrical contact A57, and an electrical contact B58. The indicator light 51 is located on the top of the clamping block B25. A groove 52 is provided on one side of the clamping block B25. A guide groove 53 is fitted on one side of the inner side of the groove 52. A movable block 54 that matches the groove 52 is provided on one side of the guide groove 53. A spring B55 is fitted on the outer side of the guide groove 53. A sleeve 56 is provided on the side of the clamping block B25 away from the groove 52. One side of the guide groove 53 extends into the inner side of the sleeve 56 and is provided with an electrical contact A57. An electrical contact B58 that mates with the electrical contact A57 is provided on one side inside the sleeve 56. The indicator light 51 can be activated to provide a reminder after the workpiece is clamped.

[0033] Working principle: When machining railcar parts, the workpiece can be placed between clamping block A24 and clamping block B25 on the top of the fixture table 1. Then, the motor is started to drive the gear to rotate. Through the meshing of the gear with the external gear ring 32, the turntable 31 can be rotated. When the turntable 31 rotates, it can drive two sets of pulleys 34 to roll along the inner side of the elliptical groove 33 under the guidance of the slide groove 21. This causes clamping blocks A24 and B25 to overcome the elastic force of spring A26 and move closer to each other to clamp and fix the workpiece. After machining the workpiece, the turntable 31 is controlled to reset. The elastic force of spring A26 can drive clamping blocks A24 and B25 to reset.

[0034] When clamping the workpiece, the movable block 54 can first contact the workpiece. During clamping, the movable block 54 can overcome the elastic force of the spring B55 and retract into the groove 52. At this time, the electrical contact A57 can contact the electrical contact B58, and the indicator light 51 will be automatically activated to remind the operator that the workpiece has been clamped. If the indicator light 51 is not activated, it means that there is a gap between the fixture and the workpiece, which can prevent the cutting stability from being affected.

[0035] During the cutting process, the vacuum cleaner 45 is started to operate. The vacuum cleaner 45 can draw airflow, which can carry the chips generated during cutting into the suction pipe 41 through the notch 42. Then, it is guided into the filter box 43 through the guide pipe 44. The chips are screened out by the filter screen 46, and the airflow can be discharged out through the exhaust pipe, which can automatically clean up the processing chips.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A multi-functional positioning fixture for cutting components of rail passenger vehicles, comprising a fixture table (1), characterized in that: The clamping table (1) is provided with a clamping component (2) on its top, and a control component (3) is provided inside the clamping table (1) on its top. The clamping assembly (2) includes a slide groove (21), a slider (22), a connecting tube (23), a clamping block A (24), a clamping block B (25), and a spring A (26). The slide groove (21) has two sets, which are located on both sides of the top of the fixture table (1). The inner sides of the two sets of slide grooves (21) are slidably connected to the sliders (22). The inner sides of the two sets of sliders (22) are provided with connecting tubes (23). The tops of the two sets of connecting tubes (23) are respectively provided with clamping blocks A (24) and clamping blocks B (25). The two sets of sliders (22) are provided with spring A (26) on the side close to each other. The control component (3) includes a turntable (31), an external gear ring (32), an elliptical groove (33), a pulley (34), and a drive component (35). The turntable (31) is fitted onto the top of the fixture table (1). An external gear ring (32) is provided on the outer side of the turntable (31). An elliptical groove (33) is provided on the inner side of the turntable (31). A pulley (34) that cooperates with the elliptical groove (33) is provided on the outer side of the two sets of connecting pipes (23). A drive component (35) that is in transmission cooperation with the external gear ring (32) is provided on one side of the bottom of the fixture table (1). The clamping block A (24) is provided with a dust removal component (4), and the clamping block B (25) is provided with a positioning reminder component (5) on its top.

2. The multi-functional positioning fixture for cutting railway passenger car parts according to claim 1, characterized in that: The dust removal assembly (4) includes a suction pipe (41), a notch (42), a filter box (43), a guide pipe (44), a vacuum cleaner (45), and a filter screen (46). The suction pipe (41) is located inside the clamping block A (24). The clamping block A (24) has multiple notches (42) connected to the suction pipe (41) on one side. The bottom of the clamping platform (1) is located on the side away from the drive assembly (35). The top of the filter box (43) is provided with a guide pipe (44) connected to the suction pipe (41), and the guide pipe (44) passes through a set of connecting pipes (23). The vacuum cleaner (45) is located on one side of the clamping platform (1). The input end of the vacuum cleaner (45) is connected to the filter box (43). The output end of the vacuum cleaner (45) is provided with an exhaust pipe. The filter screen (46) is located inside the filter box (43).

3. A multi-functional positioning fixture for cutting railway passenger car parts according to claim 1, characterized in that: The positioning reminder component (5) includes an indicator light (51), a groove (52), a guide groove (53), a movable block (54), a spring B (55), a sleeve (56), an electric contact A (57), and an electric contact B (58). The indicator light (51) is located on the top of the clamping block B (25). A groove (52) is provided on one side of the clamping block B (25). A guide groove (53) is provided on one side of the inner side of the groove (52). A movable block (54) that matches the groove (52) is provided on one side of the guide groove (53). A spring B (55) is provided on the outer side of the guide groove (53). A sleeve (56) is provided on the side of the clamping block B (25) away from the groove (52). One side of the guide groove (53) extends to the inner side of the sleeve (56) and is provided with an electric contact A (57). An electric contact B (58) that matches the electric contact A (57) is provided on one side inside the sleeve (56).

4. A multi-functional positioning fixture for cutting railway passenger car parts according to claim 1, characterized in that: The drive assembly (35) includes a motor rod and a gear. A motor is provided on one side of the bottom of the fixture table (1), and a rotating rod is provided at the output end of the motor. A gear that meshes with the external gear ring (32) is provided at the top of the rotating rod.

5. A multi-functional positioning fixture for cutting railway passenger car parts according to claim 1, characterized in that: The top of the fixture table (1) is provided with an annular guide groove, and the top of the turntable (31) is provided with two sets of guide blocks that cooperate with the annular guide groove.

6. A multi-functional positioning fixture for cutting railway passenger car parts according to claim 2, characterized in that: The bottom of the filter box (43) is provided with a collection box, and one end of the clamping table (1) is provided with a door that communicates with the filter box (43).

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