CN215315471U

CN215315471U - Special machine tool for riveting automobile brake shoe

Info

Publication number: CN215315471U
Application number: CN202121773588.6U
Authority: CN
Inventors: 尹茂兴
Original assignee: Zhucheng Xingbang Cnc Equipment Co ltd
Current assignee: Zhucheng Xingbang Cnc Equipment Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-12-28
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a special machine tool for riveting an automobile brake shoe, which comprises a machine tool body, wherein a workbench and a stand column are arranged on the machine tool body, and the workbench and the stand column can slide relatively to realize approaching or separating; a tool assembly capable of fixing the brake shoe is mounted on the workbench; the riveting device is connected to the upright column in a sliding mode and opposite to the tool assembly, and the riveting device is matched with a rivet feeding device for conveying rivets. Through setting up frock subassembly, riveting set and sending structures such as nail device, can solve the poor problem of brake shoe riveting effect, effectively avoided the removal and the empty phenomenon of riveting of brake shoe, guaranteed the riveted accuracy, improved work efficiency and product quality.

Description

Special machine tool for riveting automobile brake shoe

Technical Field

The utility model relates to a special machine tool for riveting an automobile brake shoe.

Background

The drum brake is characterized in that a brake transmission mechanism is utilized to enable a brake shoe to press a brake friction plate on the inner side of a brake drum, so that braking force is generated, wheels are decelerated or the vehicle stops within the shortest distance according to requirements, driving safety is guaranteed, and the vehicle can be parked reliably and cannot automatically slide. The rotating element of a drum brake is the brake drum and the stationary element is the brake shoe, also called brake shoe. The brake shoe is a friction coupling of a drum brake, and should have a friction coefficient as high and stable as possible, and suitable wear resistance, heat radiation, heat capacity, and the like, in addition to strength and rigidity required as a member.

Brake pads are also called brake shoes or shoes; in the brake system of the automobile, the brake pad is the most critical safety part, and the quality of all brake effects plays a decisive role in the brake pad, so the good brake pad is the protection spirit of people and automobiles. The brake plate is typically riveted to the brake shoe.

At present, the riveting of the brake shoe and the brake pad of the automobile is generally realized by manually riveting the brake shoe and the brake pad, namely manually pressing a rivet into a rivet hole. When the manual mode is used for processing, the brake shoe cannot be positioned, so that the problem that the riveting position is influenced by the movement of the brake shoe during riveting is easily caused, the processing efficiency is reduced, and the product quality is also reduced; moreover, whether the brake shoe hole and the brake pad hole are standard or not cannot be detected through manual riveting, and a finished product after riveting is low in precision and poor in riveting effect; in addition, when the rivet is manually placed, the phenomenon of empty riveting is easy to occur, and the working efficiency is not high.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the special machine tool for riveting the automobile brake shoe, which can solve the problem of poor riveting effect of the brake shoe, effectively avoids the phenomena of movement and empty riveting of the brake shoe, ensures the riveting accuracy, and improves the working efficiency and the product quality.

In order to solve the technical problem, the utility model comprises a lathe bed, and is characterized in that: including the lathe bed, install workstation and stand on the lathe bed, workstation and stand can relative slip in order to realize being close to or keeping away from.

Further, the workbench is fixedly connected to the bed body, and the upright posts are connected to the bed body in a sliding manner.

Furthermore, the stand rigid coupling is on the lathe bed, workstation sliding connection is on the lathe bed.

In order to improve the working efficiency and facilitate clamping; the workbench is driven to rotate by a driving device, and a tool assembly capable of fixing the brake shoe is mounted on the workbench; the riveting device is connected to the upright column in a sliding mode and opposite to the tool assembly, and the riveting device is matched with a rivet feeding device for conveying rivets.

Furthermore, in order to realize multi-station processing, the clamping time is saved; the tool assemblies are arranged into at least two groups, and the plurality of groups of tool assemblies are uniformly distributed on the periphery of the workbench.

Further, to avoid the brake shoes from moving; the tool assembly comprises a first speed reducer arranged on the workbench, and the first speed reducer is connected with a first servo motor for driving the first speed reducer to work; the tooling plate is installed on one side, far away from the workbench, of the first speed reducer, two sets of tooling shaft groups are symmetrically arranged on the tooling plate, and one brake shoe is installed on each set of tooling shaft group.

Furthermore, the processing is convenient; the working end of the tool disc is positioned in the parallel position of the front side surface of the upright post.

In order to ensure smooth riveting of the brake shoe; the riveting device comprises a first driving piece arranged at the top of the upright post and a riveting clamp body connected on the front side surface in a sliding manner, and the first driving piece drives the riveting clamp body to slide up and down along the front side surface; the riveting clamp body comprises an upper end part and a lower end part which are oppositely arranged, a first punch and a second driving piece for driving the first punch to move up and down are installed at the upper end part, and a second punch and a third driving piece for driving the second punch to move up and down are installed at the lower end part; the upper end part is also provided with a rivet groove for placing a rivet, and two ends of the rivet groove are respectively corresponding to the first punch and the second punch and the central line of the rivet groove is positioned on the same vertical straight line.

In order to ensure that the rivet enters a nail feeding slideway of a nail feeding device at one time and avoid the phenomenon of empty riveting; the nail feeding device comprises a nail storage box, a nail feeding port is formed in the top of the nail storage box, a nail feeding slide way which is bent downwards and the end part of the nail storage box faces towards a rivet groove is installed at the bottom of the nail storage box, and a nail feeding assembly capable of continuously feeding nails is installed in the nail storage box.

Further, the nail feeding assembly comprises a rotatable rotating shaft arranged at the center in the nail storage box, a nail feeding disc is sleeved on the rotating shaft, a nail storage groove is formed in the nail feeding disc, and an outlet of the nail storage groove is communicated with a nail feeding slideway; and a second speed reducer and a fourth servo motor for driving the second speed reducer to work are further mounted at the top of the upright post, and the second speed reducer is connected with the rotating shaft.

Further, in order to ensure smooth nail feeding; the nail feeding slideway is arranged in a smooth and downward inclined mode.

In conclusion, the utility model has reasonable integral structure design; the arranged tool assembly fixes the brake shoe, so that the brake shoe is effectively prevented from moving; the arranged rivet feeding device can automatically feed rivets to a designated position, so that the accuracy of the rivets entering the rivet grooves is guaranteed, manual rivet installation is replaced, the rivets sequentially enter the rivet feeding slide ways of the rivet feeding device to wait for riveting, and the phenomenon of empty riveting is avoided; the riveting accuracy is ensured. Furthermore, a double-assembly component structure is adopted, and a driving device is matched to drive the workbench to operate, so that the brake shoe on one side is always riveted with the brake pad; after the first side is riveted, the workbench rotates to the second side, the brake shoe on the second side is riveted with the brake pad, meanwhile, the finished product riveted on the first side can be disassembled or the next group of brake shoes can be clamped, the brake shoe riveted on the second side cannot be affected, and the disassembly or the clamping is not required to be independently reserved for time; the working efficiency of workers is improved, and the clamping time is saved; and, realized replacing artifical manual riveting with mechanical riveting, the processing personnel only need operating system alright in order to obtain the finished product, improved work efficiency and product quality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the utility model and do not limit it. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic rear view of the structure of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B in fig. 2.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to fig. 1 to 4.

The special machine tool for riveting the automobile brake shoe comprises a machine body 1, wherein a workbench 2 and a stand column 10 are installed on the machine body 1, and the workbench 2 and the stand column 10 can slide relatively to realize approaching or separating; there are two ways: the first mode is that the workbench 2 is fixedly connected on the lathe bed 1, and the upright post 10 is connected on the lathe bed 1 in a sliding way; in the second mode, the column 10 is fixedly connected to the bed 1, and the worktable 2 is slidably connected to the bed 1.

The present embodiment is described by taking a first mode as an example: the workbench 2 is driven to rotate by a driving device, and a tool assembly capable of fixing a brake shoe is arranged on the workbench 2; the upright post 10 is connected with a riveting device which is arranged opposite to the tool assembly in a sliding manner, and the riveting device is matched with a rivet feeding device for conveying rivets. The tool assemblies are arranged into at least two groups, and the plurality of groups of tool assemblies are uniformly distributed on the periphery of the workbench 2. This embodiment adopts two sets of frock subassemblies:

a rack and a driving device for driving the rack to move linearly are fixedly arranged in front of the lathe bed 1, and the driving device can adopt a structure which can drive the rack to move linearly, such as an air cylinder, an oil cylinder or an electric push rod; the rack is engaged with a gear, and the gear is connected with the workbench 2 through a rotating shaft. Two sets of tool assemblies which are arranged oppositely are arranged on the workbench 2, each tool assembly comprises a tool base 3, a first speed reducer 4 is arranged on the tool base 3, and the first speed reducer 4 is connected with a first servo motor 5 for driving the first speed reducer 4 to work; the opposite outer sides of the two first speed reducers 4 are respectively provided with a circular tool disc 6, each tool disc 6 is provided with two groups of tool shaft groups 7 which are symmetrically arranged, and each group of tool shaft groups 7 is respectively provided with a brake shoe.

A vertical column 10 arranged at an interval with the workbench 2 is arranged behind the lathe bed 1, and the vertical column 10 and the workbench 2 are respectively arranged at two ends of the lathe bed 1; two first guide rails 8 which are horizontally arranged are arranged in the middle behind the lathe bed 1, the two first guide rails 8 are parallel, and two ends of the two first guide rails are aligned; the bottom of the upright post 10 is fixedly provided with at least one first sliding seat 9, and each first sliding seat 9 can slide along the first guide rail 8; the bottom of the upright post 10 is also provided with a first nut seat; a power device and a first ball screw are mounted at the rear end part of the lathe bed 1, the power device selects a second servo motor 11, and the second servo motor 11 is connected with the first ball screw through a first coupler; the first ball screw is arranged between the two first guide rails 8, and a first screw nut on the first ball screw is arranged on a first nut seat; the second servo motor 11 drives the first ball screw to rotate so as to drive the upright post 10 to move horizontally along the first guide rail 8.

The upright 10 comprises two adjacent and vertical front sides 12 opposite to the worktable 2 and a rear side 13 adjacent to the front sides 12, the front sides 12 being arranged opposite to and parallel to the working tooling plate 6. The staff faces lathe bed 1, and the right hand side is the preceding tip of installing workstation 2, and trailing flank 13 is the one side of keeping away from operating personnel on the stand 10, and the one end of installing work revolving stage 2 on the lathe bed 1 is higher than the one end of installing stand 10.

Two second guide rails 14 which are perpendicular to the lathe bed 1 are arranged on the front side surface 12 opposite to the workbench 2, the two second guide rails 14 are parallel, two ends of the two second guide rails are aligned, and the two second guide rails 14 are perpendicular to the first guide rail 8; the two second guide rails 14 are connected with riveting clamp bodies 17, and the riveting clamp bodies 17 are of C-shaped or side U-shaped or E-shaped structures, preferably C-shaped; a second sliding plate 16 is fixedly arranged on the riveting clamp body 17, a second sliding seat 15 is arranged on the second sliding plate 16 towards the side surface of the upright post 10, the second sliding seat 15 is matched with the second guide rail 14, and the second sliding seat 15 can drive the riveting clamp body 17 to slide along the two second guide rails 14; the second slide plate 16 is also provided with a second nut seat facing the bottom of the upright post 10; a first oil cylinder 18, namely a second driving piece, is arranged at the upper end of the riveting clamp body 17, a rivet groove 19 is arranged below the first oil cylinder 18, and the rivet groove 19 is of a groove body structure with a wide upper end and a narrow lower end, preferably a duck mouth groove; the lower end part of the riveting clamp body 17 is provided with a second oil cylinder 20 which is coaxial with the first oil cylinder 18, namely a third driving piece, the third driving piece is an oil cylinder for processing, and the clamp body is used as a cylinder body, so that the precision and the rigidity are ensured; the end part of the first oil cylinder 18 is connected with a first punch 21, the end part of the second oil cylinder 20 is connected with a second punch 22, the first punch 21 and the second punch 22 correspond to the duckbill groove, and the central lines of the first punch 21 and the second punch 22 are on the same vertical straight line; the first cylinder 18 and the second cylinder 20 are both hydraulic cylinders, i.e. driven by a hydraulic system to control the movement of the first punch 21 and the second punch 22. In operation, the brake shoe to be riveted on the tool disc 6 is placed between the first punch 21 and the second punch 22 so as to facilitate smooth riveting.

A third servo motor 23 and a first ball screw are mounted at the top of the upright post 10, and the third servo motor 23 is connected with a second screw through a second coupler; the second ball screw is arranged between the two second guide rails 14, a nut of the second ball screw is mounted on a second nut seat, and the third servo motor 23 drives the second ball screw to rotate so as to drive the second sliding plate 16 to move longitudinally along the second guide rails 14.

A support 24 is installed on the rear side surface 13 of the upright post 10, a second speed reducer 25 and a fourth servo motor for driving the second speed reducer 25 to work are installed at the top of the support 24, the second speed reducer 25 is connected with a nail feeding device capable of automatically and circularly feeding nails, the nail feeding device comprises a nail storage box 26, a nail feeding port is formed in the top of the nail storage box 26, an arc-shaped nail feeding slideway 27 which is bent downwards and faces towards the duckbill groove is installed at the bottom of the nail storage box 26, and the nail feeding slideway 27 is matched with the duckbill groove; the center department is provided with the pivot in storing up nail case 26, and coaxial cover is equipped with and send the nail disc in the pivot, send to offer the spiral helicine nail groove that stores up on the nail disc, store up the nail groove and send nail slide 27 intercommunication.

During working, firstly, the double-station processing method adopted in the embodiment can simultaneously clamp four brake shoes, two brake shoes are installed on each tool disc 6, the four brake shoes are respectively installed on the corresponding tool shaft groups 7, and the air cylinder drives the workbench 2 to rotate so that the tool discs 6 face the front side 12; then, the second servo motor 11 drives the upright post 10 to linearly move along the first guide rail 8 in the horizontal direction, when the upright post reaches an accurate position, the third servo motor 23 drives the riveting clamp body 17 to linearly move along the second guide rail 14 in the vertical direction, and meanwhile, the rivet in the rivet feeding device slides into the duck bill groove through the rivet feeding slideway 27; finally, the brake pad is placed at the position of the brake shoe manually or by a hand grip and the like, and after the position is adjusted, the first oil cylinder 18 and the second oil cylinder 20 control the first punch 21 and the second punch 22 to move in opposite directions, so that riveting is completed. After riveting is finished, the first oil cylinder 18 and the second oil cylinder 20 return respectively, the first punch 21 and the second punch 22 are far away from the tool disc 6, then the air cylinder drives the workbench 2 to rotate for 180 degrees, and two brake shoes on the other side are rotated to accurate positions to be riveted; during the process, the riveted finished product can be disassembled or the next group of brake shoes and brake pads can be clamped.

The utility model has reasonable integral structure design and convenient use; the structure can solve the problem of poor riveting effect of the existing automobile brake shoe, realizes replacement of manual riveting by mechanical riveting, effectively avoids the brake shoe movement in the middle of the manual riveting process of the brake shoe and influences the riveting position, realizes one-time clamping of the brake shoe and can be completed by riveting, and processing personnel only need an operating system and can obtain finished products, thereby obviously improving the working efficiency and the product quality. The novel multi-station structure is adopted, the workbench 2 is driven to rotate by the air cylinder, riveting between the brake shoe on one side and the brake pad is guaranteed, after the first side is riveted, the workbench 2 rotates to the second side, the brake shoe on the second side is riveted with the brake pad, finished products riveted on the first side can be disassembled or a next group of brake shoes can be clamped at the same time, and the brake shoe riveted on the second side can not be affected; by analogy, the clamping of the third side, the fourth side and the like can be carried out, the mode improves the working efficiency of workers, and the clamping time is saved. In addition, the automatic circulating nail feeding device can automatically feed the rivets to a designated position, the accuracy of the rivets entering the rivet groove 19 is guaranteed, manual rivet installation is replaced, the rivets sequentially enter the nail feeding slide way 27 of the nail feeding device to wait for riveting, and the phenomenon of empty riveting is avoided.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides a special machine tool of automobile brake shoe riveting, includes lathe bed (1), its characterized in that: the lathe bed (1) is provided with a workbench (2) and a vertical column (10), and the workbench (2) and the vertical column (10) can slide relatively to realize approaching or departing;

a tool assembly capable of fixing a brake shoe is mounted on the workbench (2); the riveting device is characterized in that the upright post (10) is connected with a riveting device which is arranged opposite to the tool assembly in a sliding mode, and the riveting device is matched with a rivet conveying device for conveying rivets.

2. The special machine tool for riveting the automobile brake shoe according to claim 1, which is characterized in that: the workbench (2) is fixedly connected to the lathe bed (1), and the upright column (10) is connected to the lathe bed (1) in a sliding mode.

3. The special machine tool for riveting the automobile brake shoe according to claim 1, which is characterized in that: the upright column (10) is fixedly connected to the lathe bed (1), and the workbench (2) is connected to the lathe bed (1) in a sliding mode.

4. The special machine tool for riveting the automobile brake shoe according to any one of claims 2 or 3, wherein: the workbench (2) is driven to rotate by a driving device.

5. The machine tool special for riveting the automobile brake shoe as claimed in claim 4, wherein: the tool assemblies are arranged into at least two groups, and the plurality of groups of tool assemblies are uniformly distributed on the periphery of the workbench (2).

6. The special machine tool for riveting the automobile brake shoe according to claim 5, which is characterized in that: the tool assembly comprises a first speed reducer (4) arranged on the workbench (2), and the first speed reducer (4) is connected with a first servo motor (5) for driving the first speed reducer (4) to work; the brake shoe structure is characterized in that a tool disc (6) is installed on one side, away from the workbench (2), of the first speed reducer (4), two sets of tool shaft groups (7) which are symmetrically arranged are installed on the tool disc (6), and a brake shoe is installed on each tool shaft group (7).

7. The special machine tool for riveting the automobile brake shoe according to claim 6, which is characterized in that: the working end of the tool disc (6) is positioned in parallel with the front side surface of the upright post (10).

8. The machine tool special for riveting the automobile brake shoe as claimed in claim 4, wherein: the riveting device comprises a first driving piece arranged at the top of the upright post (10) and a riveting clamp body (17) connected to the front side face in a sliding manner, wherein the first driving piece drives the riveting clamp body (17) to slide up and down along the front side face; the riveting clamp body (17) comprises an upper end part and a lower end part which are oppositely arranged, the upper end part is provided with a first punch head (21) and a second driving piece for driving the first punch head (21) to move up and down, and the lower end part is provided with a second punch head (22) and a third driving piece for driving the second punch head (22) to move up and down; the upper end portion is further provided with a rivet groove (19) for placing a rivet, and two ends of the rivet groove (19) are respectively corresponding to the first punch head (21) and the second punch head (22) and the center line of the rivet groove is located on the same vertical straight line.

9. The special machine tool for riveting the automobile brake shoe according to claim 1, which is characterized in that: the nail feeding device comprises a nail storage box (26), a nail feeding port is formed in the top of the nail storage box (26), a nail feeding slide way (27) which is bent downwards and the end part of which faces the rivet groove (19) is installed at the bottom of the nail storage box (26), and a nail feeding assembly capable of continuously feeding nails is installed in the nail storage box (26); the nail feeding assembly comprises a rotatable rotating shaft arranged at the center in a nail storage box (26), a nail feeding disc is sleeved on the rotating shaft, a nail storage groove is formed in the nail feeding disc, and the outlet of the nail storage groove is communicated with a nail feeding slideway (27); and a second speed reducer (25) and a fourth servo motor for driving the second speed reducer (25) to work are further mounted at the top of the upright post (10), and the second speed reducer (25) is connected with the rotating shaft.

10. The special machine tool for riveting the automobile brake shoe according to claim 9, which is characterized in that: the nail feeding slide way (27) is smoothly arranged downwards in a downward inclined mode.