Positioning and locking device for a brake caliper

Abstract

The utility model provides a kind of positioning locking device for brake caliper, comprising: positioning assembly, positioning assembly includes support positioning seat, support positioning seat includes at least one first passageway of through support positioning seat;In the assembly state of brake caliper and positioning locking device, at least one threaded hole of brake caliper is located the first end of first passageway;Tightening assembly, tightening assembly includes the tightening sleeve of fixed connection in the second end of first passageway, and tightening sleeve has the second passageway of intercommunication with first passageway;Tightening assembly further includes the tightening positioning shaft of being arranged in the inside of first passageway and second passageway;Tightening positioning shaft is coaxial with threaded hole;Tightening positioning shaft moves along the direction of approaching threaded hole, to lock the support assembly and shell assembly of brake caliper by threaded hole;The gap between the inner wall of second passageway and tightening positioning shaft forms chip groove. This embodiment can improve the coaxiality between tightening positioning shaft and threaded hole, while avoiding metal powder accumulation.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and more specifically, to a positioning and locking device for brake calipers. Background Technology

[0002] In the fully automated production line for brake calipers, the brake calipers need to be assembled and positioned. Specifically, the brake caliper includes a bracket assembly, a housing assembly, and threaded holes. The assembly and positioning of the brake caliper requires locking the bracket assembly and housing assembly through the threaded holes.

[0003] However, in related technologies, fully automated production lines lack a device for assembling and positioning brake calipers. This leads to insufficient coaxiality between the tightening positioning shaft and the threaded hole when manually operating a tightening gun to assemble and position the brake calipers. This results in thread damage and stripping during the tightening process, forming metal powder and reducing product yield. Furthermore, the accumulation of metal powder can further cause the tightening positioning shaft and threaded hole to jam.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a positioning and locking device for brake calipers, so as to at least solve the technical problem in the prior art where insufficient coaxiality between the tightening positioning shaft and the threaded hole leads to the formation of metal powder, and the accumulation of metal powder further causes the tightening positioning shaft and the threaded hole to jam.

[0006] This utility model provides a positioning and locking device for a brake caliper, comprising: a positioning assembly and a tightening assembly. The positioning assembly includes a bracket positioning seat, which has at least one first channel penetrating through it; in the assembled state of the brake caliper and the positioning and locking device, at least one threaded hole of the brake caliper is located at the first end of the first channel. The tightening assembly includes a tightening sleeve fixedly connected to the second end of the first channel, the tightening sleeve having a second channel communicating with the first channel; the tightening assembly also includes a tightening positioning shaft disposed inside the first and second channels; the tightening positioning shaft is coaxial with the threaded hole; the tightening positioning shaft moves in a direction close to the threaded hole to lock the brake caliper bracket assembly and housing assembly through the threaded hole; the gap between the inner wall of the second channel and the tightening positioning shaft forms a chip removal groove. This embodiment increases the coaxiality between the tightening positioning shaft and the threaded hole during tightening gun operation by setting the tightening positioning shaft and the threaded hole to reduce problems such as thread damage and stripping during the tightening process, thereby reducing the formation of metal powder and improving the yield of the brake caliper. At the same time, the chip removal groove formed by the gap between the inner wall of the second channel and the tightening positioning shaft can promptly remove the metal powder generated during the movement of the tightening positioning shaft and the threaded hole, effectively avoiding the problem of the tightening positioning shaft and the threaded hole jamming due to the accumulation of metal powder.

[0007] In some embodiments, the tightening sleeve is further provided with at least one opening penetrating the sleeve wall, and the opening is connected to the chip removal groove. By providing an opening connected to the chip removal groove, the metal powder in the chip removal groove can be discharged through the opening, which can prevent the accumulation of metal powder in the chip removal groove, and further prevent the problem of the tightening positioning shaft and threaded hole getting stuck after the metal powder accumulates.

[0008] In some embodiments, the tightening assembly further includes a guide sleeve disposed at the end of the tightening sleeve away from the bracket positioning seat. The guide sleeve is sleeved on the tightening positioning shaft to limit the tightening positioning shaft. This embodiment, by using the guide sleeve to limit the tightening positioning shaft, ensures that the tightening positioning shaft and the threaded hole are coaxial. This increases the coaxiality between the tightening positioning shaft and the threaded hole during tightening gun operation, reduces thread damage and stripping during the tightening process, decreases metal powder formation, and improves product yield. Simultaneously, the guide sleeve effectively absorbs vibrations during the threaded engagement between the tightening positioning shaft and the threaded hole, further reducing metal powder generation.

[0009] In some embodiments, the portion of the tightening positioning shaft located in the second channel has a protrusion, the outer diameter of which is larger than the inner diameter of the guide sleeve. This embodiment, by providing a protrusion in the portion of the tightening positioning shaft located in the second channel, and ensuring the protrusion's outer diameter is larger than the guide sleeve's inner diameter, restricts the movement of the tightening positioning shaft to within the second channel. This limits the movement trajectory of the tightening positioning shaft, preventing damage to the threaded hole caused by the tightening positioning shaft getting too close, and reducing the generation of metal powder.

[0010] In some embodiments, the tightening assembly further includes a spring disposed within a chip removal groove, the spring being sleeved on the tightening positioning shaft; one end of the spring abuts against the end of the tightening sleeve near the bracket positioning seat, and the other end abuts against a protrusion on the tightening positioning shaft. This embodiment, by providing a spring sleeved on the tightening positioning shaft within the chip removal groove, enables the tightening positioning shaft to return to its original position after the tightening gun loosens the tightening positioning shaft in the opposite direction following the threaded engagement between the tightening positioning shaft and the threaded hole, thereby releasing the brake caliper.

[0011] In some embodiments, the tightening positioning shaft further includes a connecting end located on the side of the guide sleeve away from the tightening sleeve. The connecting end is used to connect a tightening gun, which is coaxial with the tightening positioning shaft. The tightening positioning shaft rotates under the drive of the tightening gun to lock the bracket assembly and housing assembly of the brake caliper through the threaded hole. This embodiment, by providing a connecting end on the side of the tightening positioning shaft away from the tightening sleeve, enables the connection between the tightening positioning shaft and the tightening gun, thereby achieving threaded engagement between the tightening positioning shaft and the threaded hole under the drive of the tightening gun.

[0012] In some embodiments, the positioning assembly further includes an auxiliary positioning block; in the assembled state of the brake caliper and the positioning locking device, the brake caliper is located on the auxiliary positioning block; the brake caliper's bracket assembly abuts against the top of the auxiliary positioning block. This embodiment, by providing an auxiliary positioning block, enables the bearing capacity of the brake caliper, thereby improving stability, reducing metal powder generation, and increasing the yield rate of the brake caliper during the threaded engagement process of tightening the positioning shaft and the threaded hole.

[0013] In some embodiments, the positioning assembly further includes a positioning tongue; in the assembled state of the brake caliper and the positioning locking device, the brake caliper is located between the positioning tongue and the auxiliary positioning block. This embodiment, by providing a positioning tongue to cooperate with the auxiliary positioning block, further limits the brake caliper in the assembled state of the brake caliper and the positioning locking device, thereby further improving stability, reducing metal powder generation, and increasing the yield of the brake caliper during the threaded engagement of the positioning shaft and the threaded hole.

[0014] In some embodiments, the tightening sleeve has an end face on the side near the bracket positioning seat, and the end face is fixedly connected to the bracket positioning seat. By providing an end face on the tightening sleeve, this embodiment can improve the connection strength between the tightening sleeve and the bracket positioning seat, thereby further improving the coaxiality of the tightening positioning shaft and the threaded hole and reducing the generation of metal powder.

[0015] In some embodiments, the positioning and locking device further includes a tray base, on which the positioning component is disposed. This embodiment improves the stability of the assembly and mating process of the brake caliper and the positioning and locking device by providing a tray base to support the positioning component, reducing the generation of metal powder, and increasing the yield of the brake caliper.

[0016] Compared with the prior art, the present invention has at least the following technical effects:

[0017] This utility model discloses a positioning and locking device for brake calipers. By setting the tightening positioning shaft and the threaded hole to be coaxial, the coaxiality between the tightening positioning shaft and the threaded hole is increased during the operation of the tightening gun. This reduces problems such as thread damage and stripping during the tightening process, reduces the formation of metal powder, and improves the product yield. At the same time, by setting a chip removal groove in the gap between the inner wall of the second channel and the tightening positioning shaft, the metal powder generated during the movement of the tightening positioning shaft and the threaded hole is removed in time, effectively avoiding the problem of the tightening positioning shaft and the threaded hole jamming due to the accumulation of metal powder. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments conforming to the present invention and, together with the description, serve to explain the principles of the present invention. It is obvious that the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] Figure 1 This is a schematic diagram of the assembly state of a positioning locking device and a brake caliper provided in an embodiment of this utility model.

[0020] Figure 2 yes Figure 1 A schematic diagram of the structure of the brake caliper before assembly.

[0021] Figure 3 yes Figure 1 A schematic diagram of the center positioning locking device before it is assembled with the brake caliper.

[0022] Figure 4 This is a schematic diagram of the assembly state of another positioning and locking device and brake caliper provided in this embodiment of the utility model.

[0023] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of the tightening positioning shaft and the threaded hole.

[0024] Figure 6 This is a top view of another positioning and locking device provided in an embodiment of the present invention.

[0025] Figure label:

[0026] 100 Brake Caliper

[0027] 110 bracket assembly

[0028] 120 Housing Assembly

[0029] 130 threaded hole

[0030] 200 Positioning and Locking Device

[0031] 211 Bracket Positioning Seat

[0032] 212 Auxiliary positioning block

[0033] 213 Positioning tongue plate

[0034] 221 Tighten the sleeve

[0035] 222 Tighten the positioning shaft

[0036] 223 Chip Conveyor

[0037] 224 guide sleeve

[0038] 225 spring

[0039] 226 Opening

[0040] 227 protrusions

[0041] 228 connector

[0042] 229 end face

[0043] 300 tray base Detailed Implementation

[0044] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0045] The use of terms such as "first," "second," and similar words in the specific description does not indicate any order, quantity, or importance, but is merely used to distinguish different components. Furthermore, in the description of this utility model, terms such as "upper," "lower," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. These are merely for ease of 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; therefore, they should not be construed as limitations on this utility model.

[0046] It should be noted that, unless otherwise specified, the embodiments of this utility model and the features in different embodiments can be combined with each other.

[0047] Figure 1 This is a schematic diagram of the assembly state of a positioning locking device and a brake caliper provided in an embodiment of this utility model. Figure 2 yes Figure 1 A schematic diagram of the structure of the brake caliper before assembly. Figure 3 yes Figure 1 A schematic diagram of the center positioning locking device before it is assembled with the brake caliper. Figure 4 This is a schematic diagram of the assembly state of another positioning and locking device and brake caliper provided in this embodiment of the utility model. Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of the tightening positioning shaft and the threaded hole.

[0048] like Figures 1 to 5 As shown, this utility model provides a positioning and locking device 200 for a brake caliper 100, comprising: a positioning assembly and a tightening assembly. The positioning assembly includes a bracket positioning seat 211, which has at least one first channel penetrating through it; in the assembled state of the brake caliper 100 and the positioning and locking device 200, at least one threaded hole 130 of the brake caliper 100 is located at the first end of the first channel. The tightening assembly includes a tightening sleeve 221 fixedly connected to the second end of the first channel, which has a second channel communicating with the first channel; the tightening assembly also includes a tightening positioning shaft 222 disposed inside the first and second channels; the tightening positioning shaft 222 is coaxial with the threaded hole 130; the tightening positioning shaft 222 moves in a direction close to the threaded hole 130 to lock the bracket assembly 110 and the housing assembly 120 of the brake caliper 100 through the threaded hole 130; the gap between the inner wall of the second channel and the tightening positioning shaft 222 forms a chip removal groove 223.

[0049] Specifically, the positioning assembly is used to limit the movement of the brake caliper 100, and the tightening assembly is used to assemble the brake caliper 100. The number of the first channel, tightening sleeve 221, second channel, and tightening positioning shaft 222 can be the same as the number of threaded holes 130. Figure 1 , Figure 3 and Figure 4 This example uses two channels, but is not limited to this. The first channel can transition into the tightening positioning shaft 222. The tightening positioning shaft 222 engages with the threaded hole 130.

[0050] This embodiment increases the coaxiality between the tightening positioning shaft 222 and the threaded hole 130 during tightening gun operation by setting the tightening positioning shaft 222 and the threaded hole 130 to reduce the thread engagement between the tightening positioning shaft 222 and the threaded hole 130, thereby reducing problems such as thread damage and stripping during the tightening process, reducing the formation of metal powder, and improving the yield of the brake caliper 100. At the same time, by setting the chip removal groove 223 formed in the gap between the inner wall of the second channel and the tightening positioning shaft 222, the metal powder generated during the movement of the tightening positioning shaft 222 and the threaded hole 130 during the thread engagement is removed in time, effectively avoiding the problem of the tightening positioning shaft 222 and the threaded hole 130 jamming due to the accumulation of metal powder.

[0051] Figure 6 This is a top view of another positioning and locking device provided in an embodiment of the present invention.

[0052] like Figure 6 As shown, in some embodiments, the tightening sleeve 221 further includes at least one opening 226 penetrating the wall of the tightening sleeve 221, and the opening 226 communicates with the chip removal groove 223. Specifically, multiple openings 226 may be provided and may be located at any position on the tightening sleeve 221. Optionally, the opening 226 may be located at the bottom of the tightening sleeve 221. Figure 6 Taking the top of the tightening sleeve 221 as an example, this embodiment provides an opening 226 that communicates with the chip removal groove 223. The metal powder in the chip removal groove 223 is discharged through the opening 226, which can prevent the accumulation of metal powder in the chip removal groove 223 and further prevent the problem of the tightening positioning shaft 222 and threaded hole 130 from getting stuck after the metal powder accumulates.

[0053] like Figures 3 to 6As shown, in some embodiments, the tightening assembly further includes a guide sleeve 224 disposed at the end of the tightening sleeve 221 away from the bracket positioning seat 211. The guide sleeve 224 is sleeved on the tightening positioning shaft 222 to limit the tightening positioning shaft 222. Specifically, the guide sleeve 224, the tightening positioning shaft 222, and the threaded hole 130 can be coaxially arranged. In addition, the guide sleeve 224 can be made of metal. In this embodiment, by setting a guide sleeve 224 to limit the tightening positioning shaft 222, it can ensure that the tightening positioning shaft 222 and the threaded hole 130 are coaxial. This increases the coaxiality between the tightening positioning shaft 222 and the threaded hole 130 during the operation of the tightening gun, reduces the thread engagement between the tightening positioning shaft 222 and the threaded hole 130, and prevents problems such as thread damage and stripping during the tightening process. It also reduces the formation of metal powder and improves the product yield. At the same time, the guide sleeve 224 can effectively absorb the vibration during the thread engagement between the tightening positioning shaft 222 and the threaded hole 130, reducing the generation of metal powder.

[0054] like Figure 5 As shown, in some embodiments, the portion of the tightening positioning shaft 222 located in the second channel has a protrusion 227, the outer diameter of which is larger than the inner diameter of the guide sleeve 224. Specifically, the protrusion 227 can be an entire ring, surrounding the entire outer surface of the tightening positioning shaft 222. Alternatively, the protrusion 227 can be at least one mutually separated protrusion. In this embodiment, by providing a protrusion 227 in the portion of the tightening positioning shaft 222 located in the second channel, and by setting the outer diameter of the protrusion 227 to be larger than the inner diameter of the guide sleeve 224, the protrusion 227 can only move within the second channel, thereby limiting the movement trajectory of the tightening positioning shaft 222, preventing damage to the threaded hole 130 caused by the tightening positioning shaft 222 getting too close to it, and reducing the generation of metal powder.

[0055] like Figure 5 As shown, in some embodiments, the tightening assembly further includes a spring 225 disposed within the chip removal groove 223, the spring 225 being sleeved on the tightening positioning shaft 222; one end of the spring 225 abuts against the end of the tightening sleeve 221 near the bracket positioning seat 211, and the other end abuts against the protrusion 227 of the tightening positioning shaft 222. In this embodiment, by providing a spring 225 sleeved on the tightening positioning shaft 222 within the chip removal groove 223, after the tightening positioning shaft 222 has engaged with the threaded hole 130, the tightening gun loosens the tightening positioning shaft 222 in the opposite direction, and then restores the position of the tightening positioning shaft 222, thereby releasing the tightening positioning shaft 222 from the threaded hole 130 and unloading the brake caliper 100.

[0056] like Figures 3 to 6As shown, in some embodiments, the tightening positioning shaft 222 further has a connecting end 228, which is located on the side of the guide sleeve 224 away from the tightening sleeve 221. The connecting end 228 is used to connect a tightening gun, which is coaxial with the tightening positioning shaft 222. The tightening positioning shaft 222 rotates under the drive of the tightening gun to lock the bracket assembly 110 and the housing assembly 120 of the brake caliper 100 through the threaded hole 130. In this embodiment, by providing the connecting end 228 on the side of the tightening positioning shaft 222 away from the tightening sleeve 221, the connection between the tightening positioning shaft 222 and the tightening gun can be realized, thereby achieving the threaded engagement between the tightening positioning shaft 222 and the threaded hole 130 under the drive of the tightening gun.

[0057] like Figures 3 to 6 As shown, in some embodiments, the positioning assembly further includes an auxiliary positioning block 212; in the assembled state of the brake caliper 100 and the positioning locking device 200, the brake caliper 100 is located on the auxiliary positioning block 212; the bracket assembly 110 of the brake caliper 100 abuts against the top of the auxiliary positioning block 212. This embodiment, by setting the auxiliary positioning block 212, can achieve load-bearing capacity for the brake caliper 100, thereby improving stability, reducing the generation of metal powder, and increasing the yield of the brake caliper 100 during the tightening of the threaded engagement between the positioning shaft 222 and the threaded hole 130.

[0058] like Figure 4 As shown, in some embodiments, the positioning assembly further includes a positioning tongue 213; in the assembled state of the brake caliper 100 and the positioning locking device 200, the brake caliper 100 is located between the positioning tongue 213 and the auxiliary positioning block 212. This embodiment, by setting the positioning tongue 213 to cooperate with the auxiliary positioning block 212, further limits the brake caliper 100 in the assembled state of the brake caliper 100 and the positioning locking device 200, thereby further improving stability, reducing metal powder generation, and increasing the yield of the brake caliper 100 during the tightening of the threaded engagement between the positioning shaft 222 and the threaded hole 130.

[0059] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the tightening sleeve 221 has an end face 229 on the side near the bracket positioning seat 211, and the end face 229 is fixedly connected to the bracket positioning seat 211. Specifically, the end face 229 can be fixed to the bracket positioning seat 211 by means of screwing, riveting, snap-fitting, or welding. In this embodiment, by providing the end face 229 on the tightening sleeve 221, the connection strength between the tightening sleeve 221 and the bracket positioning seat 211 can be improved, thereby further improving the coaxiality of the tightening positioning shaft 222 and the threaded hole 130 and reducing the generation of metal powder.

[0060] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the positioning and locking device 200 further includes a pallet base 300. The positioning component is disposed on the pallet base 300. Specifically, the positioning pallet, as a lightweight, easy-to-clean, and stackable plastic pallet, is widely used in various fields. The main functions of the positioning pallet include fixing goods (i.e., the positioning component in this utility model), facilitating operation, saving space, improving efficiency, and protecting the environment. By using the positioning pallet, logistics efficiency and production efficiency can be effectively improved, costs can be reduced, and the environment can be protected and resources can be reduced. In the future, with the development of the logistics industry and the continuous upgrading of the manufacturing industry, the application prospects of the positioning pallet will be even broader. In this embodiment, by setting the pallet base 300 to support the positioning component, the stability of the assembly and cooperation process of the brake caliper 100 and the positioning and locking device 200 is improved, the generation of metal powder is reduced, and the yield of the brake caliper 100 is improved. At the same time, by using the positioning pallet, this embodiment can perform batch processing of the positioning assembly of the brake caliper 100, reduce the worker's operation time, improve work efficiency, and reduce production costs.

[0061] Furthermore, the main steps of the positioning and locking device 200 of this utility model for assembling and positioning the brake caliper 100 are as follows:

[0062] Step 1: The operator manually or automatically through the assembly line robot places the brake caliper 100 onto the positioning component of the positioning and locking device 200, and the lifting mechanism of the tray base 300 lifts the entire positioning and locking device 200 to the preset position.

[0063] Step 2: The head of the tightening gun is connected to the connecting end 228 of the tightening positioning shaft 222. The tightening positioning shaft 222 rotates under the drive of the tightening gun to lock the bracket assembly 110 and housing assembly 120 of the brake caliper 100 through the threaded hole 130.

[0064] Step 3: After the bracket assembly 110 and housing assembly 120 of the brake caliper 100 are locked, the tightening gun rotates in the opposite direction, causing the tightening positioning shaft 222 to loosen the threaded hole 130, thereby unloading the brake caliper 100.

[0065] Step 4: The lifting mechanism of the pallet base 300 drives the pallet base 300 to descend, and under the drive of the transmission chain, the brake caliper 100 is transferred to the subsequent station.

[0066] As can be seen from the above embodiments, the positioning and locking device for brake calipers provided by this utility model achieves at least the following beneficial effects:

[0067] This utility model discloses a positioning and locking device for brake calipers. By setting the tightening positioning shaft and the threaded hole to be coaxial, the coaxiality between the tightening positioning shaft and the threaded hole is increased during the operation of the tightening gun. This reduces problems such as thread damage and stripping during the tightening process, reduces the formation of metal powder, and improves the product yield. At the same time, by setting a chip removal groove in the gap between the inner wall of the second channel and the tightening positioning shaft, the metal powder generated during the movement of the tightening positioning shaft and the threaded hole is removed in time, effectively avoiding the problem of the tightening positioning shaft and the threaded hole jamming due to the accumulation of metal powder.

[0068] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this utility model, and all such modifications or substitutions should be considered within the protection scope of this utility model.

Claims

1. A positioning and locking device for brake calipers, characterized in that, include: A positioning component, the positioning component including a bracket positioning seat, the bracket positioning seat including at least one first channel passing through the bracket positioning seat; In the assembled state of the brake caliper and the positioning locking device, at least one threaded hole of the brake caliper is located at the first end of the first channel; A tightening assembly includes a tightening sleeve fixedly connected to the second end of the first channel, the tightening sleeve having a second channel communicating with the first channel; the tightening assembly also includes a tightening positioning shaft disposed inside the first channel and the second channel; the tightening positioning shaft is coaxial with the threaded hole; the tightening positioning shaft moves in a direction close to the threaded hole to lock the brake caliper bracket assembly and housing assembly through the threaded hole; the gap between the inner wall of the second channel and the tightening positioning shaft forms a chip removal groove.

2. The positioning and locking device for brake calipers according to claim 1, characterized in that, The tightening sleeve is further provided with at least one opening penetrating the sleeve wall, and the opening is connected to the chip removal groove.

3. The positioning and locking device for brake calipers according to claim 1, characterized in that, The tightening assembly further includes a guide sleeve disposed at the end of the tightening sleeve away from the bracket positioning seat, the guide sleeve being sleeved on the tightening positioning shaft to limit the tightening positioning shaft.

4. The positioning and locking device for brake calipers according to claim 3, characterized in that, The portion of the tightening positioning shaft located in the second channel has a protrusion, the outer diameter of which is larger than the inner diameter of the guide sleeve.

5. The positioning and locking device for brake calipers according to claim 4, characterized in that, The tightening assembly also includes a spring disposed in the chip removal groove, the spring being sleeved on the tightening positioning shaft; one end of the spring abuts against one end of the tightening sleeve near the bracket positioning seat, and the other end abuts against the protrusion of the tightening positioning shaft.

6. The positioning and locking device for brake calipers according to claim 3, characterized in that, The tightening positioning shaft also has a connecting end, which is located on the side of the guide sleeve away from the tightening sleeve; the connecting end is used to connect a tightening gun, which is coaxial with the tightening positioning shaft; the tightening positioning shaft rotates under the drive of the tightening gun to lock the bracket assembly and the housing assembly of the brake caliper through the threaded hole.

7. The positioning and locking device for brake calipers according to claim 1, characterized in that, The positioning component further includes an auxiliary positioning block; in the assembled state of the brake caliper and the positioning locking device, the brake caliper is located on the auxiliary positioning block; the bracket assembly of the brake caliper abuts against the top of the auxiliary positioning block.

8. The positioning and locking device for brake calipers according to claim 7, characterized in that, The positioning component also includes a positioning tongue plate; in the assembled state of the brake caliper and the positioning locking device, the brake caliper is located between the positioning tongue plate and the auxiliary positioning block.

9. The positioning and locking device for brake calipers according to claim 1, characterized in that, The tightening sleeve has an end face on the side near the bracket positioning seat, and the end face is fixedly connected to the bracket positioning seat.

10. The positioning and locking device for brake calipers according to claim 1, characterized in that, Also includes: A tray base, wherein the positioning component is disposed on the tray base.

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