A caliper support machining clamp

Abstract

The utility model relates to brake caliper processing technical field, specifically disclose a caliper support processing clamp for the positioning clamping of caliper support body, including base, mounting seat, limiting structure and clamping structure, the inside of caliper support body bottom both ends is provided with the limiting slot, mounting seat is fixed on the base, its top is equipped with the limiting block that extends to opposite direction, limiting block is matched with limiting slot, makes caliper support body through horizontal sliding and sits down in mounting seat top and completes the preliminary positioning, limiting structure is equipped with on the base and distributes in the both ends of sliding path, is used for limiting horizontal sliding stroke and will work piece accurate positioning in processing station, clamping structure is multiple, distributes in the outside of having positioned caliper support body and is fixed on the base. Through the coordinated action of sliding type positioning and multidirectional clamping, realized work piece quick accurate clamping, effectively improved the clamping efficiency and positioning accuracy, strengthened the stability of processing process, especially suitable for batch production.

Description

Technical Field

[0001] This utility model relates to the field of brake caliper processing technology, specifically a caliper bracket processing fixture. Background Technology

[0002] Hydraulic disc brake caliper assemblies are core components of modern vehicle braking systems, and their performance and reliability are directly related to driving safety. As a key load-bearing component in this assembly, the caliper bracket has extremely high requirements for the machining accuracy of its curved surface structure. Currently, the machining of the curved surface of such parts is usually carried out on a horizontal milling machine using a shaped milling cutter. The machining quality and efficiency largely depend on the tooling fixtures used.

[0003] In the prior art, Chinese utility model patent CN203918499U discloses a vertical milling fixture for a caliper bracket. This fixture adopts an L-shaped body structure, achieving vertical workpiece positioning by setting fixed and movable positioning blocks on the vertical plate, and using a first pressure plate, a second pressure plate, and multiple screws and threaded rod assemblies to achieve clamping. This structure aims to improve the stress distribution on the equipment by changing the workpiece clamping posture and converting the vertical movement of the milling machine table into horizontal movement.

[0004] However, practice has shown that the existing technical fixtures cited above still have significant shortcomings in practical applications. When clamping workpieces, it is necessary to operate multiple adjustment and locking components such as horizontal positioning screws, horizontal clamping screws, and clamping screws in sequence or separately, which involves numerous operation steps and complex processes. This not only leads to low efficiency in workpiece installation and disassembly, making it difficult to meet the needs of high-efficiency mass production, but also increases the labor intensity of operators and the risk of misoperation caused by multiple adjustments, ultimately affecting the overall processing efficiency. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a caliper bracket processing fixture, which aims to solve the problems of low workpiece clamping efficiency, cumbersome operation and high labor intensity caused by the numerous clamping operation steps in the prior art.

[0006] The technical solution of this utility model is implemented as follows: A caliper bracket machining fixture for positioning and clamping the caliper bracket body includes a base, a mounting base, a limiting structure, and a clamping structure, wherein... Limiting grooves are respectively formed on the inner sides of both ends of the bottom of the caliper bracket body; The mounting base is fixed on the base, and its top is provided with a limiting block extending in the opposite direction. The limiting block is adapted to the limiting groove of the caliper bracket body. The caliper bracket body can slide laterally into the limiting groove and sit on the top of the mounting base to complete the initial positioning. The limiting structure is provided on the base and distributed at both ends of the sliding path of the caliper bracket body. It is used to limit the horizontal sliding stroke of the caliper bracket body and accurately position it at the machining station on the mounting base. The clamping structure comprises multiple components, which are distributed on the outside of the positioned caliper bracket body and fixed to the base, for applying clamping force to the caliper bracket body.

[0007] Optionally, the limiting structure includes a fixed stop and a movable locking member, wherein, The fixed stop is located at the end of the sliding path of the caliper bracket body and is used to hard limit its sliding stroke; The movable locking member is located at the beginning of the sliding path and can move toward the fixed stop after the caliper bracket body reaches the final processing position, thereby pressing and fixing the caliper bracket body in that position.

[0008] Optionally, the fixing stop includes a fixing seat and a stop block, wherein, The fixing seat is fixedly connected to the base; The stop block is installed on the side of the fixed base facing the end face of the caliper bracket body, and is used to contact and position the stop caliper bracket body.

[0009] Optionally, the fixing stop further includes a compensation block; The compensation block is located between the fixed seat and the stop block, and is used to compensate for the positioning dimension chain of the caliper bracket body.

[0010] Optionally, the movable locking element includes a drive cylinder and a locking block, wherein, The drive cylinder is fixed on the base and located at the beginning of the sliding path of the caliper bracket body; The locking block is connected to the piston rod end of the drive cylinder and is driven by the drive cylinder to reciprocate along the sliding path direction.

[0011] Optionally, the movable locking element further includes a compensating positioning pin, wherein, The compensation positioning pins include two, which are symmetrically arranged on the side of the locking block facing the caliper bracket body, and are threadedly connected to the locking block; The length of the compensation positioning pin extending beyond the end face of the locking block is adjusted by turning it.

[0012] Optionally, the clamping structure includes a first hydraulic cylinder and grippers, wherein, The first hydraulic cylinder is fixed to the base; The gripper is located on the top of the caliper bracket body and is connected to the end of the piston rod of the first hydraulic cylinder, and is driven by the first hydraulic cylinder to perform opening and closing movements.

[0013] Optionally, the clamping structure further includes a second hydraulic cylinder and a support block, wherein, The second hydraulic cylinder is fixedly mounted on the base; The support block is located on the side wall of the caliper bracket body and is connected to the end of the piston rod of the second cylinder. It is driven by the second cylinder to reciprocate in the horizontal direction, and the horizontal direction is perpendicular to the sliding direction of the caliper bracket body.

[0014] Optionally, a caliper bracket machining fixture further includes a purging structure, which comprises a connector and a dust collection pipe, wherein... The connector is connected between the dust removal pipe and the base, and is used to fix the dust removal pipe on the base; The dust removal pipe opening is set in the corresponding processing area and is connected to an external dust removal system or air source.

[0015] Optionally, the dust removal pipe is a universal dust removal pipe that can be bent arbitrarily and shaped into a target posture.

[0016] Compared with the prior art, the caliper bracket processing fixture provided by this utility model has the following advantages: (1) By using the limiting block set on the top of the mounting base to cooperate with the limiting groove at the bottom of the caliper bracket body, the workpiece can be quickly positioned by sliding in laterally, which greatly simplifies the clamping process. At the same time, the limiting structure composed of fixed stop and movable locking parts is used to hard limit and press the workpiece from both ends of the sliding path, which realizes precise positioning on the machining station and effectively ensures the high precision requirements of subsequent arc surface machining.

[0017] (2) The compensation block set in the fixed stop and the threaded connection compensation positioning column set in the movable locking part can effectively compensate for the size difference and positioning dimension chain tolerance of different models of caliper bracket bodies; this modular and adjustable design significantly improves the versatility of the fixture and its adaptability to product changes.

[0018] (3) The clamping structure is driven by multiple sets of hydraulic cylinders, which apply clamping force from multiple directions such as the top and sides of the workpiece, and effectively complement the positioning system at the bottom. This multi-directional clamping mechanism greatly enhances the rigidity and overall stability of the workpiece during the processing, effectively resists milling vibration and cutting force, and provides a guarantee for obtaining a high surface quality arc surface. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a caliper bracket processing fixture according to the present invention; Figure 2 This is a schematic diagram of the clamping state of a caliper bracket processing fixture according to the present invention; Figure 3This is a schematic diagram showing the disassembled structure of a caliper bracket processing fixture according to the present invention; Figure 4 This is a schematic diagram of the fixing stop structure of a caliper bracket processing fixture according to the present invention; Figure 5 This is a schematic diagram of the movable locking component of a caliper bracket processing fixture according to the present invention.

[0020] In the diagram: 1. Caliper bracket body; 101. Limiting groove; 2. Base; 3. Mounting seat; 31. Limiting block; 4. Limiting structure; 41. Fixed stop; 411. Fixed seat; 412. Stop block; 413. Compensating block; 42. Movable locking component; 421. Drive cylinder; 422. Locking block; 423. Compensating positioning post; 5. Clamping structure; 51. First hydraulic cylinder; 52. Gripper; 53. Second hydraulic cylinder; 54. Support block; 6. Blowing structure; 61. Connecting component; 62. Dust removal pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments 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, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to 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 the embodiments of this utility model based on the specific circumstances.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] Please see Figure 1-5 The present invention proposes a caliper bracket processing fixture for positioning and clamping the caliper bracket body 1, including a base 2, a mounting base 3, a limiting structure 4 and a clamping structure 5.

[0028] like Figure 1-3 As shown, limit grooves 101 are respectively opened on the inner sides of both ends of the bottom of the caliper bracket body 1; the mounting base 3 is fixedly mounted on the base 2, and the top of the mounting base 3 is provided with a limit block 31 extending in the opposite direction. The limit block 31 is adapted to the limit groove 101 of the caliper bracket body 1. The caliper bracket body 1 can slide laterally into the mounting base 3 through the limit groove 101 and sit on the top of the mounting base 3 to complete the initial positioning; the limit structure 4 is provided on the base 2 and distributed at both ends of the sliding path of the caliper bracket body 1, which is used to limit the horizontal sliding stroke of the caliper bracket body 1 and accurately position it at the processing position on the mounting base 3; the clamping structure 5 includes multiple clamping structures, which are respectively distributed on the outside of the positioned caliper bracket body 1 and fixed on the base 2, and are used to apply clamping force to the caliper bracket body 1.

[0029] Specifically, the base 2 serves as the foundation platform for the entire fixture and is fixed to the machine tool table with bolts. The mounting base 3 is fixed to the base 2 with bolts, and its two limit blocks 31 are precisely aligned with the two limit grooves 101 at the bottom of the caliper bracket body 1. During operation, the worker only needs to align the workpiece, i.e., the limit groove 101 of the caliper bracket body 1, with the limit block 31, and then slide it horizontally to complete the rapid and accurate initial positioning. This design greatly simplifies the operation steps and improves the clamping efficiency. Subsequently, the limit structures 4 distributed at both ends of the sliding path begin to work, providing hard limit at one end and clamping force at the other end. Together, they accurately position and lock the workpiece in the preset machining position, laying a solid foundation for high-precision milling of arc surfaces. Finally, multiple clamping structures 5 work together from the outside of the workpiece to apply vertical and lateral clamping forces, forming a rigid clamping whole with the positioning system. This effectively resists the cutting force and vibration during the machining process, ensuring the stability of the machining process and the reliability of the machining accuracy.

[0030] In some embodiments, such as Figure 2-3 As shown, the limiting structure 4 includes a fixed stop 41 and a movable locking member 42. The fixed stop 41 is located at the end of the sliding path of the caliper bracket body 1 and is used to hard limit its sliding stroke. The movable locking member 42 is located at the beginning of the sliding path and can move toward the fixed stop 41 after the caliper bracket body 1 reaches the final processing position, thereby pressing and fixing the caliper bracket body 1 at that position.

[0031] Specifically, in this embodiment, the limiting structure 4 is implemented as a fixed stop 41 and a movable locking member 42 at both ends. The fixed stop 41 serves as a reference, and its position remains fixed. When the caliper bracket body 1 slides in and contacts it, the end of the stroke is reached, achieving precise hard limiting. Subsequently, the movable locking member 42 at the beginning end moves towards the fixed stop 41 under the drive of the drive source until it clamps the other end of the workpiece. This collaborative design constitutes a highly efficient linear positioning clamping unit. It not only ensures the repeatability accuracy of each positioning and eliminates the error risk caused by multiple adjustments, but also achieves rapid locking and unlocking. Compared with the traditional method of manually tightening multiple screws, the degree of automation and efficiency are significantly improved.

[0032] In some embodiments, such as Figure 4 As shown, the fixed stop 41 includes a fixed base 411 and a stop block 412. The fixed base 411 is fixedly connected to the base 2. The stop block 412 is installed on the side of the fixed base 411 facing the end face of the caliper bracket body 1, and is used to contact and position the caliper bracket body 1.

[0033] Specifically, in this embodiment, the fixed stop 41 consists of two core components: a fixed base 411 and a stop block 412. The fixed base 411 is firmly connected to the base 2 by bolts, providing a stable foundation for the entire stop function. The stop block 412 is made of high-strength wear-resistant material, such as quenched steel, and is bolted to the fixed base 411. Its end face facing the workpiece is precision machined to ensure the contact area and flatness with the caliper bracket body 1. This split structure has obvious advantages: First, it designs the stop block 412, which bears the main impact and pressure, as a replaceable consumable part. When it wears out due to long-term use, only the stop block 412 needs to be replaced, without replacing the entire fixed base 411 or base 2, which greatly reduces maintenance costs and shortens maintenance time. Second, split machining makes it easier to ensure the machining accuracy of key contact surfaces, thereby ensuring positioning accuracy.

[0034] In some embodiments, such as Figure 4 As shown, the fixed stop 41 also includes a compensation block 413; the compensation block 413 is located between the fixed seat 411 and the stop block 412, and is used to compensate for the positioning dimension chain of the caliper bracket body 1.

[0035] Specifically, in this embodiment, a compensation block 413 is added between the fixed seat 411 and the stop block 412. The thickness of the compensation block 413 can be designed and manufactured according to actual needs. When the final machining position of the caliper bracket body 1 needs to be finely adjusted due to machine tool accuracy, tool wear, or workpiece batch differences, there is no need to re-machine and install the expensive fixed seat 411 or base 2. It is only necessary to manufacture and replace a compensation block 413 with a specific thickness to accurately compensate for this entire dimensional chain. This design greatly enhances the process adaptability and versatility of the fixture, reduces the risk of scrapping or overhauling the entire fixture due to small dimensional changes, and is a key design for achieving flexible manufacturing and long-term economic efficiency.

[0036] In some embodiments, such as Figure 5 As shown, the movable locking component 42 includes a drive cylinder 421 and a locking block 422. The drive cylinder 421 is fixed on the base 2 and located at the beginning of the sliding path of the caliper bracket body 1. The locking block 422 is connected to the piston rod end of the drive cylinder 421 and is driven by the drive cylinder 421 to reciprocate along the sliding path direction.

[0037] Specifically, in this embodiment, the power source of the movable locking member 42 is a drive cylinder 421, which is reliably fixed on the base 2 through a cylinder mounting seat. The locking block 422 is connected to the end of the piston rod of the drive cylinder 421. When the caliper bracket body 1 slides in and contacts the fixed stop member 41, the control system sends a signal, the drive cylinder 421 moves, and pushes the locking block 422 forward along the sliding path until the workpiece is firmly pressed. Compared with the screws and bolts in the prior art that require manual operation, the cylinder drive realizes the automation and speed of the pressing action, the pressing force is uniform and adjustable, significantly shortens the auxiliary time, reduces the labor intensity of the operator, and is very suitable for batch production lines with strict cycle requirements.

[0038] In some embodiments, such as Figure 5 As shown, the movable locking component 42 also includes a compensation positioning pin 423. There are two compensation positioning pins 423, which are symmetrically arranged on the side of the locking block 422 facing the caliper bracket body 1 and are threadedly connected to the locking block 422. The length of the compensation positioning pin 423 extending out of the end face of the locking block 422 can be adjusted by screwing it.

[0039] Specifically, in this embodiment, the locking block 422 of the movable locking member 42 integrates two compensating positioning pins 423. The two compensating positioning pins 423 are symmetrically arranged and connected to the locking block 422 by threads. When it is necessary to clamp caliper bracket bodies 1 of different models or with dimensional tolerances, the operator can use tools such as wrenches to turn the compensating positioning pins 423 to precisely adjust the length of their front end extending out of the end face of the locking block 422. This design allows a single movable locking member 42 to adapt to changes in the end face position of the workpiece, ensuring that the clamping force is applied at the optimal position. Together with the compensating block 413, they form a multi-dimensional, adjustable positioning and clamping system, which greatly improves the versatility of the fixture and its adaptability to product changes.

[0040] In some embodiments, such as Figure 3 As shown, the clamping structure 5 includes a first hydraulic cylinder 51 and a gripper 52. The first hydraulic cylinder 51 is fixed on the base 2. The gripper 52 is located on the top of the caliper bracket body 1 and is connected to the piston rod end of the first hydraulic cylinder 51. It is driven by the first hydraulic cylinder 51 to perform opening and closing movements.

[0041] Specifically, in this embodiment, the first implementation of the clamping structure 5 clamps the workpiece vertically. The first hydraulic cylinder 51 is fixed on the base 2, and its piston rod extends upward to drive the connected gripper 52. The gripper 52 is usually L-shaped or F-shaped, and its clamping end directly acts on the top non-critical area of ​​the caliper bracket body 1. When the piston rod of the first hydraulic cylinder 51 extends, the gripper 52 presses down, firmly clamping the workpiece onto the support surface of the mounting base 3. When the piston rod retracts, the gripper 52 lifts up, and the workpiece can be removed. Using a hydraulic cylinder as a power source can provide a larger and more stable clamping force than a pneumatic cylinder, effectively preventing the workpiece from warping or vibrating due to cutting force during processing, thereby ensuring the accuracy and surface finish of the arc surface processing.

[0042] In some embodiments, such as Figure 3 As shown, the clamping structure 5 also includes a second hydraulic cylinder 53 and a support block 54. The second hydraulic cylinder 53 is fixedly mounted on the base 2. The support block 54 is mounted on the side wall of the caliper bracket body 1 and is connected to the piston rod end of the second hydraulic cylinder 53. It is driven by the second hydraulic cylinder 53 to reciprocate in the horizontal direction, and the horizontal direction is perpendicular to the sliding direction of the caliper bracket body 1.

[0043] Specifically, in this embodiment, the second implementation of the clamping structure 5 provides lateral support and clamping for the workpiece. The second hydraulic cylinder 53 is fixed on the base 2, and the movement direction of its piston rod is perpendicular to the sliding direction of the workpiece. The support block 54 is connected to the end of the piston rod, and its surface in contact with the workpiece can be inlaid with soft materials such as copper to protect the workpiece. When the second hydraulic cylinder 53 is activated, the support block 54 moves horizontally and presses the workpiece against the side. This lateral clamping and constraint of the workpiece greatly enhances the overall rigidity and stability of the workpiece under complex milling forces, which is a key guarantee for obtaining high-precision and high-quality machining results.

[0044] In some embodiments, such as Figure 1 As shown, a caliper bracket processing fixture also includes a purging structure 6, which includes a connector 61 and a dust removal pipe 62. The connector 61 is connected between the dust removal pipe 62 and the base 2 to fix the dust removal pipe 62 on the base 2. The opening of the dust removal pipe 62 is set corresponding to the processing area and is connected to an external dust removal system or air source.

[0045] Specifically, in this embodiment, to improve processing quality and automation level, the fixture integrates a blowing structure 6, which mainly consists of a connector 61 and a dust removal pipe 62. The connector 61 is typically a pipe clamp or a special bracket, with one end fixed to the base 2 or a nearby structure, and the other end firmly gripping the dust removal pipe 62 to ensure its stable position. One end of the dust removal pipe 62 is connected to an external centralized dust removal system or factory air source through a flexible hose, while the other end of the pipe is precisely positioned to face the cutting contact area between the milling cutter and the workpiece. During processing, continuous airflow or suction can promptly blow away or suck away the generated chips and dust from the processing area, effectively preventing chips from scratching the processed surface, wearing the tool, and affecting the positioning accuracy of the fixture.

[0046] In some embodiments, such as Figure 1 As shown, the dust removal pipe 62 is a universal dust removal pipe that can be bent arbitrarily and shaped into the target posture.

[0047] In this embodiment, an existing universal dust collection pipe is preferably used as the specific form of the dust collection pipe 62. This type of pipe usually has a metal flexible tube or memory steel wire embedded inside and is wrapped with wear-resistant rubber or plastic on the outside. The operator can easily bend the dust collection pipe 62 by hand according to the specific position of the workpiece after each clamping, the geometry of the tool, and the direction of the chip splash, so that the pipe opening reaches and is kept in the target posture and orientation that is most effective for dust removal. This ensures that the blowing airflow can always cover the core processing area at the best angle, which greatly improves the dust removal efficiency. At the same time, it avoids the trouble of designing and manufacturing complex fixed pipes for different workpieces, and enhances the flexibility and adaptability of the fixture.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A caliper bracket machining fixture for positioning and clamping the caliper bracket body (1), characterized in that, It includes a base (2), a mounting base (3), a limiting structure (4), and a clamping structure (5), wherein, Limiting grooves (101) are respectively provided on the inner sides of both ends of the bottom of the caliper bracket body (1); The mounting base (3) is fixed on the base (2), and a limiting block (31) extending in the opposite direction is provided on its top. The limiting block (31) is adapted to the limiting groove (101) of the caliper bracket body (1). The caliper bracket body (1) can slide laterally into the mounting base (3) through the limiting groove (101) and sit on the top of the mounting base (3) to complete the initial positioning. The limiting structure (4) is provided on the base (2) and distributed at both ends of the sliding path of the caliper bracket body (1), which is used to limit the horizontal sliding stroke of the caliper bracket body (1) and precisely position it at the processing station on the mounting base (3); The clamping structure (5) includes multiple clamping structures, which are distributed on the outside of the positioned caliper bracket body (1) and fixed on the base (2) to apply clamping force to the caliper bracket body (1).

2. The caliper bracket machining fixture according to claim 1, characterized in that, The limiting structure (4) includes a fixed stop (41) and a movable locking member (42), wherein, The fixed stop (41) is located at the end of the sliding path of the caliper bracket body (1) and is used to hard limit its sliding stroke; The movable locking member (42) is located at the beginning of the sliding path and can move toward the fixed stop member (41) after the caliper bracket body (1) reaches the final processing position, thereby pressing and fixing the caliper bracket body (1) at that position.

3. A caliper bracket machining fixture according to claim 2, characterized in that, The fixed stop (41) includes a fixed base (411) and a stop block (412), wherein, The fixed seat (411) is fixedly connected to the base (2); The stop block (412) is installed on one side of the end face of the fixed base (411) facing the caliper bracket body (1) for contacting and positioning the stop caliper bracket body (1).

4. A caliper bracket machining fixture according to claim 3, characterized in that, The fixed stop (41) also includes a compensation block (413). The compensation block (413) is located between the fixed seat (411) and the stop block (412) and is used to compensate for the positioning dimension chain of the caliper bracket body (1).

5. A caliper bracket machining fixture according to claim 2, characterized in that, The movable locking element (42) includes a drive cylinder (421) and a locking block (422), wherein, The drive cylinder (421) is fixed on the base (2) and located at the beginning of the sliding path of the caliper bracket body (1); The locking block (422) is connected to the piston rod end of the driving cylinder (421) and is driven by the driving cylinder (421) to reciprocate along the sliding path direction.

6. A caliper bracket machining fixture according to claim 5, characterized in that, The movable locking element (42) further includes a compensating positioning pin (423), wherein, The compensation positioning pins (423) include two, which are symmetrically arranged on the side of the locking block (422) facing the caliper bracket body (1) and are threadedly connected to the locking block (422); The length of the compensation positioning pin (423) extending beyond the end face of the locking block (422) can be adjusted by turning the compensation positioning pin (423).

7. A caliper bracket machining fixture according to claim 1, characterized in that, The clamping structure (5) includes a first hydraulic cylinder (51) and a gripper (52), wherein, The first hydraulic cylinder (51) is fixed on the base (2); The gripper (52) is located on the top of the caliper bracket body (1) and is connected to the piston rod end of the first oil cylinder (51), and is driven by the first oil cylinder (51) to perform opening and closing movements.

8. A caliper bracket machining fixture according to claim 7, characterized in that, The clamping structure (5) further includes a second hydraulic cylinder (53) and a support block (54), wherein, The second hydraulic cylinder (53) is fixedly mounted on the base (2); The support block (54) is located on the side wall of the caliper bracket body (1) and is connected to the piston rod end of the second oil cylinder (53). The second oil cylinder (53) drives it to reciprocate in the horizontal direction, and the horizontal direction is perpendicular to the sliding direction of the caliper bracket body (1).

9. A caliper bracket machining fixture according to claim 1, characterized in that, It also includes a purging structure (6), which includes a connector (61) and a dust collection pipe (62), wherein, The connector (61) is connected between the dust removal pipe (62) and the base (2) to fix the dust removal pipe (62) on the base (2); The dust removal pipe (62) is set at the port corresponding to the processing area and is connected to the external dust removal system or air source.

10. A caliper bracket machining fixture according to claim 9, characterized in that, The dust removal pipe (62) is a universal dust removal pipe that can be bent arbitrarily and shaped into the target posture.

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