Semi-automatic riveting device

Abstract

The utility model relates to a semi-automatic riveting device, including a workbench, on which are arranged several groups of riveting mechanisms and a fixture for clamping products, the several groups of riveting mechanisms are spaced and distributed around the outer periphery of the fixture, a pressure head mechanism is arranged above the fixture, and a lower connecting piece is arranged below the fixture, the pressure head mechanism comprises a first cylinder, a pressure rod linked to the output end of the first cylinder, a clamp is linked to the lower end of the pressure rod, one end of the lower connecting piece is provided with an internal threaded hole, and the other end is linked to a motor; the first cylinder can drive the pressure rod to reciprocate toward the fixture, and the motor can drive the lower connecting piece to rotate. The beneficial effects of the utility model are: providing a semi-automatic riveting device, which can be well applied to the assembly of a brake subassembly, and during the assembly process, the steel ball sleeve screw will not shake left and right, nor move up and down.

Description

Technical Field

[0001] The utility model specifically relates to a semi-automatic riveting device. Background Art

[0002] In the field of parking brakes, the brake subassembly plays a vital role. When the driver activates the brake through the handbrake after the vehicle stops, the brake subassembly begins to work. It pushes the piston to make the brake pad and brake disc tightly fit to ensure the vehicle is parked stably. The core components of the brake subassembly include spring seat sleeve, spring, steel ball sleeve, steel ball sleeve screw, threaded guide rod, steel ball and gasket. The precise coordination between the various components is the key to ensure the braking effect.

[0003] The Chinese utility model patent publication number "CN205025976U" discloses a brake caliper assembly design, and the brake subassembly mentioned in this application is a part of the brake caliper assembly, which is responsible for installation on the parking caliper body. One end is connected to the rotating bracket through a steel ball sleeve screw, and the other end is connected to the adjusting screw sleeve through a threaded guide rod. During operation, the movement of the rotating bracket will drive the steel ball sleeve screw, and after a series of precision transmissions, it will drive the brake pads on the brake caliper to achieve the braking function. Through the specification attached to the patent disclosure document Figure 1 , you can clearly see the specific structure of the brake subassembly and its installation position.

[0004] However, in the production process of the brake subassembly, after the various components are processed, they need to go through an assembly process to form a complete assembly. The assembly process mainly involves assembling the threaded guide rod first, then assembling the steel ball sleeve screw, and finally riveting the spring seat sleeve to limit the steel ball sleeve screw so that the steel ball sleeve screw and the spring seat sleeve are stably connected.

[0005] Among them, there are many factors that need to be considered in the riveting process. On the one hand, before riveting, the steel ball screw only relies on its own gravity to stand on the threaded guide rod. Therefore, if riveting is performed directly, the steel ball screw will shake left and right. On the other hand, there is a spring in the spring seat sleeve. After the threaded guide rod is pressed, it will inevitably be affected by the elastic force of the spring. The threaded guide rod will have a tendency to move upward. Since the steel ball screw only relies on its own gravity to stand on the threaded guide rod, the steel ball screw also has a tendency to move upward. In summary, the steel ball screw not only has a tendency to move upward, but also has the risk of shaking left and right. Therefore, it is impossible to rivet smoothly by simply using existing riveting equipment.

[0006] Therefore, in view of the shortcomings of the prior art, the present application proposes a semi-automatic press machine, which aims to solve the problem of difficult riveting of the steel ball sleeve screw of the brake small assembly, and can effectively perform the riveting of the steel ball sleeve screw of the brake small assembly. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a semi-automatic riveting device for the above-mentioned deficiencies of the prior art, which can be well applied to the assembly of a brake subassembly. During the assembly process, the ball sleeve screw will not shake left and right or move up and down.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a semi-automatic riveting device, including a workbench, on which are provided a plurality of riveting mechanisms and a fixture for clamping products, characterized in that: the plurality of riveting mechanisms are spaced apart on the periphery of the fixture, a pressure head mechanism is provided above the fixture, and a lower connecting piece is provided below the fixture, the pressure head mechanism includes a first cylinder, and a pressure rod linked to the output end of the first cylinder, the lower end of the pressure rod is linked to a clamp, one end of the lower connecting piece is provided with an internal threaded hole, and the other end is linked to a motor; the first cylinder can drive the pressure rod to reciprocate toward the fixture, and the motor can drive the lower connecting piece to rotate.

[0009] By adopting the above technical solution, the spring seat sleeve and the screw guide rod can be placed on the fixture by hand, and then the motor drives the lower connecting piece to rotate, and the lower connecting piece can be connected to the threaded guide rod through the internal threaded hole, so as to achieve the limit of the threaded guide rod; next, the pressure head mechanism presses the steel ball sleeve screw down to the fixture; the pressure head mechanism presses the steel ball sleeve screw down, and the lower connecting piece limits the threaded guide rod, and the two cooperate with each other to achieve the guide limit of the steel ball sleeve screw and the threaded guide rod, and several riveting mechanisms can realize the riveting of the spring seat sleeve, and after the riveting is completed, the pressure head mechanism and the lower connecting piece can be withdrawn respectively. Therefore, the semi-automatic riveting device designed in this application can be well applied to the assembly of the brake subassembly. During the assembly process, the steel ball sleeve screw will not shake left and right, nor will it move up and down.

[0010] The above-mentioned semi-automatic riveting device can be further configured as follows: each group of riveting mechanisms includes a rivet head, one end of the rivet head is provided with a rivet block, and the other end is linked to a slider, the end of the rivet block is provided with an arc-shaped rivet edge, the slider is slidably connected to the second slide rail, one end of the slider is linked to a third cylinder, and the third cylinder can drive the rivet block to reciprocate along the axis direction of the second slide rail through the slider.

[0011] With the above technical solution, the third cylinder can drive the rivet head to reciprocate along the second slide rail through the slider, and the matching relationship between the slider and the second slide rail improves the movement stability of the rivet head, thereby ensuring the riveting accuracy. The rivet block is provided with an arc-shaped rivet edge, which can well adapt to the shape of the spring seat sleeve, and the two ends of the rivet edge are used for riveting. During the riveting process, the rivet block will not interfere with the spring seat sleeve.

[0012] The above-mentioned semi-automatic riveting device can be further configured as follows: a "┥" groove is provided at the end of the slider, and both sides of the "┥" groove are open; a screw rod is connected to the output end of the third cylinder; a nut is provided at the end of the screw rod, and a nut is threadedly connected to the middle part; the screw rod is detachably connected to the "┥" groove through the nut and the nut.

[0013] By adopting the above technical solution, the detachable connection between the third cylinder and the slider can be realized, and the positional relationship between the third cylinder and the slider can be easily adjusted, so that the output force transmission efficiency of the third cylinder is more accurate and stable.

[0014] The above-mentioned semi-automatic riveting device can be further configured as follows: a placement hole is provided in the middle of the clamp and passes through the clamp, and a plurality of groups of blocks are provided on the end face of the clamp and surround the outer periphery of the placement hole, and each two adjacent groups of blocks are arranged at intervals and cooperate with the end face of the clamp to form a group of grooves, the pressure head mechanism is distributed above the clamp, and the lower connecting piece is distributed below the clamp.

[0015] With the above technical solution, the "placement hole" is used to accommodate the spring seat cover, and the "groove" is used to accommodate the flange outside the spring seat cover and prevent the spring seat cover from falling out of the fixture.

[0016] The above-mentioned semi-automatic riveting device can be further configured as follows: a linkage sleeve is provided between the lower connecting piece and the motor, the linkage sleeve is provided with a sliding hole penetrating along its own axial direction, the linkage sleeve is also provided with a guide strip groove distributed on the side of the sliding hole, the guide strip groove and the sliding hole are parallel to each other and conductive to each other, a latch is connected to the end of the lower connecting piece, and the end of the latch extends into the guide strip groove; the lower connecting piece is slidably connected to the linkage sleeve through the sliding hole, the lower connecting piece is coaxially rotated with the linkage sleeve through the latch and the guide strip groove, and the lower connecting piece is also linked to a reset component.

[0017] By adopting the above technical solution, adding a linkage sleeve, a sliding hole, a guide strip groove, and a latch, the motor's rotation output form can be converted into the rotation form of the lower connecting member, and a certain degree of axial movement or self-adjustment can be brought to the lower connecting member to adapt to the threaded connection between the lower connecting member and the threaded guide rod; the motor drives the linkage sleeve to rotate, and the lower connecting member rotates with the linkage sleeve under the action of the latch, and due to the threaded connection between the lower connecting member and the threaded guide rod, the lower connecting member can slide relative to the linkage sleeve along the axial direction of the guide strip groove to adapt to the threaded connection between the lower connecting member and the threaded guide rod. A reset component is further added to help the lower connecting member reset during the process of releasing the linkage between the lower connecting member and the threaded guide rod, so as to facilitate the next threaded guide rod assembly.

[0018] The above-mentioned semi-automatic riveting device can be further configured as follows: the reset component includes a first lower flange distributed and fixed at the end of the linkage sleeve, a first telescopic spring sleeved on the outer periphery of the lower connecting piece, and a first upper flange fixed to the outer periphery of the lower connecting piece, one end of the first telescopic spring is in contact with the first upper flange, and the other end is in contact with the first lower flange.

[0019] By adopting the above technical solution, the telescopic spring will be compressed when the lower connecting piece slides along the axial direction of the guide strip groove for the linkage sleeve. When the lower connecting piece and the threaded guide rod are released from linkage, the telescopic spring will help the lower connecting piece to reset so as to facilitate the next threaded guide rod assembly.

[0020] The above-mentioned semi-automatic riveting device can be further configured as follows: a connecting hole is provided at the upper end of the clamping piece, an insert block matching the connecting hole is provided at the lower end of the pressure rod, a cylindrical socket is provided at the lower end of the clamping piece, and a guide socket distributed on the side of the cylindrical socket is also provided at the lower end of the clamping piece.

[0021] By adopting the above technical solution, the detachable connection between the clamping part and the pressure rod can be realized by setting the connection hole and the plug block. A cylindrical plug hole is further provided to facilitate the insertion of the rod of the steel ball sleeve screw; a guide plug hole is provided to position the steel ball sleeve screw when clamping, so that the steel ball sleeve screw can be pressed into the spring seat sleeve in the correct orientation.

[0022] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of an explosion at a compression rod of an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a clamping member according to an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of a riveting mechanism according to an embodiment of the utility model;

[0027] Figure 5 It is a partial exploded schematic diagram of the riveting mechanism of an embodiment of the utility model;

[0028] Figure 6 A schematic diagram of a clamp according to an embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the assembly of the clamp and brake subassembly of an embodiment of the utility model;

[0030] Figure 8A schematic diagram of a brake subassembly according to an embodiment of the utility model;

[0031] FIG9 is a schematic diagram of the assembly of some parts below the clamp according to an embodiment of the utility model;

[0032] FIG. 10 is an exploded schematic diagram of some parts below the clamp according to an embodiment of the present invention.

[0033] Label notes: workbench a, first cylinder b2, pressure rod b9, clamping part b13, connecting hole b14, plug block b15, cylindrical socket b17, guide socket b18, lower connecting part c1, motor c2, internal threaded hole c3, linkage sleeve c4, sliding hole c5, guide strip groove c6, latch c7, first lower flange c8, first telescopic spring c9, first upper flange c10, riveting mechanism d, rivet head d1, rivet block d2, slider d3, rivet edge d4, second slide rail d5, third cylinder d6, "┥" groove d7, screw rod d8, nut d9, nut d10, fixture e, placement hole e1, stopper e2, groove e3. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1 to 1The semi-automatic riveting device shown in FIG. 0 comprises a workbench a, on which are arranged three groups of riveting mechanisms d and a fixture e for clamping products. The three groups of riveting mechanisms d are spaced and distributed around the outer periphery of the fixture e. A pressing head mechanism is arranged above the fixture e and a lower connecting member c1 is arranged below the fixture e. The pressing head mechanism comprises a first cylinder b2 and a pressing rod b9 linked to the output end of the first cylinder b2. The lower end of the pressing rod b9 is linked to a clamping member b13. One end of the lower connecting member c1 is provided with an internal threaded hole c3 and the other end is linked to a motor c2. The first cylinder b2 can drive the pressing rod b9 to reciprocate toward the fixture e, and the motor c2 can drive the lower connecting member c1 to rotate. The spring seat sleeve and the screw rod d8 can be placed on the fixture e by hand, and then the motor c2 drives the lower connecting piece c1 to rotate, and the lower connecting piece c1 can be connected to the threaded guide rod through the internal threaded hole c3, so as to achieve the limit of the threaded guide rod; then the pressure head mechanism presses the steel ball sleeve screw rod d8 down onto the fixture e; the pressure head mechanism presses the steel ball sleeve screw rod d8 down, and the lower connecting piece c1 limits the threaded guide rod, and the two cooperate with each other to achieve the guide limit of the steel ball sleeve screw rod d8 and the threaded guide rod, and the three sets of riveting mechanisms d can achieve the riveting of the spring seat sleeve, and the pressure head mechanism and the lower connecting piece c1 can be withdrawn respectively after the riveting is completed. Therefore, the semi-automatic riveting device designed in this application can be well applied to the assembly of the brake subassembly. During the assembly process, the steel ball sleeve screw rod d8 will not shake left and right, nor will it move up and down.

[0036] Each riveting mechanism d includes a rivet head d1, one end of which is provided with a rivet block d2 and the other end is linked with a slider d3, an end of the rivet block d2 is provided with an arc-shaped rivet edge d4, the slider d3 is slidably connected with a second slide rail d5, one end of the slider d3 is linked with a third cylinder d6, and the third cylinder d6 can drive the rivet block d2 to reciprocate along the axis direction of the second slide rail d5 through the slider d3. The third cylinder d6 can drive the rivet head d1 to reciprocate along the second slide rail d5 through the slider d3, and the matching relationship between the slider d3 and the second slide rail d5 improves the movement stability of the rivet head d1, thereby ensuring the riveting accuracy. The rivet block d2 is provided with an arc-shaped rivet edge d4, which can well adapt to the shape of the spring seat sleeve, and the two ends of the rivet edge d4 are used for riveting the edge d4. During the riveting process, the rivet block d2 will not interfere with the spring seat sleeve.

[0037] The end of the slider d3 is provided with a "┥" groove d7, and both sides of the "┥" groove d7 are open. The output end of the third cylinder d6 is connected to a screw rod d8, and the end of the screw rod d8 is provided with a nut d9, and the middle part is threadedly connected with a nut d10. The screw rod d8 is detachably connected to the "┥" groove d7 through the nut d9 and the nut d10. The detachable connection between the third cylinder d6 and the slider d3 can be achieved, and the positional relationship between the third cylinder d6 and the slider d3 can also be easily adjusted, so that the output force transmission efficiency of the third cylinder d6 is more accurate and stable.

[0038] A placement hole e1 is provided in the middle of the clamp e, and three groups of stoppers e2 are provided on the end surface of the clamp e, surrounding the outer periphery of the placement hole e1. Each two adjacent groups of stoppers e2 are arranged at intervals and cooperate with the end surface of the clamp e to form a group of grooves e3. The pressure head mechanism is distributed above the clamp e, and the lower connecting member c1 is distributed below the clamp e. The "placement hole e1" is used to accommodate the spring seat sleeve. The "groove e3" is used to accommodate the flange outside the spring seat sleeve and prevent the spring seat sleeve from falling out of the clamp e.

[0039] A linkage sleeve c4 is provided between the lower connecting member c1 and the motor c2. The linkage sleeve c4 is provided with a sliding hole c5 penetrating along its own axial direction. The linkage sleeve c4 is also provided with a guide strip groove c6 distributed on the side of the sliding hole c5. The guide strip groove c6 and the sliding hole c5 are parallel to each other and conductive to each other. A latch c7 is connected to the end of the lower connecting member c1, and the end of the latch c7 extends into the guide strip groove c6. The lower connecting member c1 is slidably connected to the linkage sleeve c4 through the sliding hole c5. The lower connecting member c1 is coaxially rotated with the linkage sleeve c4 through the latch c7 and the guide strip groove c6. The lower connecting member c1 is also linked to a reset component. The linkage sleeve c4, sliding hole c5, guide strip groove c6, and latch c7 are added, which can not only realize the conversion of the rotation output form of the motor c2 into the rotation form of the lower connecting member c1, but also bring a certain degree of axial movement or self-adjustment to the lower connecting member c1 to adapt to the threaded connection between the lower connecting member c1 and the threaded guide rod; the motor c2 drives the linkage sleeve c4 to rotate, and the lower connecting member c1 rotates with the linkage sleeve c4 under the action of the latch c7. Due to the threaded connection between the lower connecting member c1 and the threaded guide rod, the lower connecting member c1 can slide relative to the linkage sleeve c4 along the axial direction of the guide strip groove c6 to adapt to the threaded connection between the lower connecting member c1 and the threaded guide rod. A reset component is further added to help the lower connecting member c1 reset during the process of releasing the linkage between the lower connecting member c1 and the threaded guide rod, so as to facilitate the next threaded guide rod assembly.

[0040] The reset assembly includes a first lower flange c8 distributed on the end of the linkage sleeve c4, a first telescopic spring c9 sleeved on the outer periphery of the lower connecting member c1, and a first upper flange c10 fixed on the outer periphery of the lower connecting member c1. One end of the first telescopic spring c9 is in contact with the first upper flange c10, and the other end is in contact with the first lower flange c8. When the lower connecting member c1 slides along the axial direction of the guide strip groove c6 with respect to the linkage sleeve c4, the telescopic spring will be compressed. When the lower connecting member c1 is released from the linkage with the threaded guide rod, the telescopic spring helps the lower connecting member c1 to reset so as to facilitate the next threaded guide rod assembly.

[0041] The upper end of the clamping piece b13 is provided with a connection hole b14, the lower end of the pressure rod b9 is provided with an insert block b15 that matches the connection hole b14, the lower end of the clamping piece b13 is provided with a cylindrical insert hole b17, and the lower end of the clamping piece b13 is also provided with a guide insert hole b18 distributed on the side of the cylindrical insert hole b17. By providing the connection hole b14 and the insert block b15, the detachable connection between the clamping piece b13 and the pressure rod b9 can be achieved. The cylindrical insert hole b17 is further provided to facilitate the insertion of the rod of the steel ball sleeve screw d8; the guide insert hole b18 is provided to position the steel ball sleeve screw d8 when it is clamped, so that the steel ball sleeve screw d8 can be pressed into the spring seat sleeve in the correct orientation.

[0042] The specific operation of this embodiment when applied to a small brake assembly is as follows:

[0043] Use manual labor to place the spring seat sleeve and screw rod d8 guide rod on the fixture e.

[0044] The motor c2 drives the lower connecting member c1 to rotate, and the lower connecting member c1 can be connected to the threaded guide rod through the internal threaded hole c3, so as to limit the threaded guide rod.

[0045] The first cylinder b2 pushes the pressing rod b9 downward to press the steel ball sleeve screw rod d8 on the clamping part b13 onto the clamp e. The pressing head mechanism presses the steel ball sleeve screw rod d8 downward, and the lower connecting part c1 limits the threaded guide rod. The two cooperate with each other to achieve the guiding and limiting of the steel ball sleeve screw rod d8 and the threaded guide rod.

[0046] Finally, the spring seat sleeves of the three groups of riveting mechanisms d are riveted. After the riveting is completed, the pressure head mechanism and the lower connecting part c1 can be withdrawn respectively.

Claims

1. A semi-automatic riveting device, comprising a workbench, on which are provided a plurality of riveting mechanisms and a fixture for clamping products, characterized in that: Several groups of riveting mechanisms are distributed at intervals on the periphery of the clamp, a pressure head mechanism is provided above the clamp and a lower connecting piece is provided below the clamp, the pressure head mechanism includes a first cylinder and a pressure rod linked to the output end of the first cylinder, the lower end of the pressure rod is linked to a clamp, one end of the lower connecting piece is provided with an internal threaded hole, and the other end is linked to a motor; the first cylinder can drive the pressure rod to reciprocate toward the clamp, and the motor can drive the lower connecting piece to rotate.

2. The semi-automatic riveting device according to claim 1 is characterized in that: Each riveting mechanism includes a rivet head, one end of which is provided with a rivet block and the other end is linked to a slider, the end of the rivet block is provided with an arc-shaped rivet edge, the slider is slidably connected to a second slide rail, one end of the slider is linked to a third cylinder, and the third cylinder can drive the rivet block to reciprocate along the axis direction of the second slide rail through the slider.

3. The semi-automatic riveting device according to claim 2 is characterized in that: The end of the slider is provided with a "┥" groove, and both sides of the "┥" groove are open. The output end of the third cylinder is connected to a screw rod, and the end of the screw rod is provided with a nut, and the middle part is threadedly connected with a nut. The screw rod is detachably connected to the "┥" groove through the nut and the nut.

4. The semi-automatic riveting device according to claim 1 is characterized in that: A placement hole is provided in the middle of the clamp and runs through the clamp. A plurality of groups of blocks are provided on the end surface of the clamp and surround the outer circumference of the placement hole. Each two adjacent groups of blocks are arranged at intervals and cooperate with the end surface of the clamp to form a group of grooves. The pressure head mechanism is distributed above the clamp, and the lower connecting piece is distributed below the clamp.

5. The semi-automatic riveting device according to claim 4 is characterized in that: A linkage sleeve is provided between the lower connecting member and the motor, and the linkage sleeve is provided with a sliding hole penetrating along its own axial direction, and the linkage sleeve is also provided with a guide strip groove distributed on the side of the sliding hole, and the guide strip groove and the sliding hole are parallel to each other and conductive to each other, and a latch is connected to the end of the lower connecting member, and the end of the latch extends into the guide strip groove; the lower connecting member is slidably connected to the linkage sleeve through the sliding hole, and the lower connecting member is coaxially rotated with the linkage sleeve through the latch and the guide strip groove, and the lower connecting member is also linked to a reset component.

6. The semi-automatic riveting device according to claim 5, characterized in that: The reset assembly includes a first lower flange distributed and fixed on the end of the linkage sleeve, a first telescopic spring sleeved on the outer periphery of the lower connecting piece, and a first upper flange fixed on the outer periphery of the lower connecting piece, wherein one end of the first telescopic spring is in contact with the first upper flange and the other end is in contact with the first lower flange.

7. The semi-automatic riveting device according to claim 4 is characterized in that: The upper end of the clamp is provided with a connecting hole, the lower end of the pressure rod is provided with an insert block that matches the connecting hole, the lower end of the clamp is provided with a cylindrical socket, and the lower end of the clamp is also provided with guide sockets distributed on the sides of the cylindrical socket.

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