A test fixture for the electrical function of brake calipers

Abstract

This utility model relates to the field of automotive parts testing technology, and in particular to a brake caliper electrical function testing fixture, comprising a base, a fixing device vertically fixedly connected to the center of the upper surface of the base, and a clamping component disposed opposite to the front of the fixing device, the bottom surface of the clamping component being slidably in contact with the upper surface of the base; the fixing device includes a fixing plate, the bottom end of which is vertically fixedly connected to the upper surface of the base, and two connecting seats slidably connected to the fixing plate, each connecting seat having threaded connection holes at both ends; the clamping component is disposed opposite to the front of the connecting seats. This utility model has a simple structure, is easy and flexible to assemble and disassemble, and has strong versatility, which can reduce testing costs and shorten the testing cycle, while ensuring the accuracy and reliability of test results; it can effectively solve the problems of limited applicability, high cost, poor versatility, and difficulty in using existing technologies for bench electrical testing.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to a tooling for testing the electrical functions of brake calipers. Background Technology

[0002] Electrical bench testing is an experimental method that simulates actual working conditions to verify the performance, perform functional tests, and assess the reliability of electronic and electrical systems or components. It is widely used in the field of new energy vehicles, and brake caliper electrical function testing is one of the components of electrical bench testing.

[0003] As a key component of the braking system, the performance of the brake caliper directly affects the braking effect of the vehicle. Traditional brake caliper electrical function tests simply place the brake caliper on the ground without dedicated testing fixtures. Testing the brake caliper without a brake disc can cause the brake piston to be excessively pushed out after the brake caliper clamps, exceeding the design stroke and jamming, making it impossible to reset.

[0004] CN221826439U discloses an online performance testing workbench for IPB and EPB brake calipers, comprising a workbench with an IPB testing fixture disposed in the center of the workbench surface, an IPB tensile testing fixture disposed to the right of the IPB testing fixture, and an EPB testing fixture disposed to the left of the IPB testing fixture. The IPB testing fixture includes a base disposed on the workbench surface, with vertically mounted uprights on both the front and rear sides of the base. A fixture plate connecting the two uprights is disposed on the upper side of the uprights. The IPB tensile testing fixture includes two first driving devices arranged side-by-side, with a tension gauge disposed at the movable end of each first driving device, and a pull ring disposed at one end of the tension gauge. However, this prior art is complex in structure and operation, and expensive, failing to meet the needs of simple and rapid electrical bench testing.

[0005] CN221594146U discloses a clamping force testing device for brake calipers, including a base; a pressure sensor support, vertically disposed on the upper left side of the base, with a sleeve fixedly disposed on the right side of the pressure sensor support, a support block fixedly disposed on the right side of the sleeve, a mounting plate disposed above the support block along the front-back direction, and a product placement rack disposed on the right side of the mounting plate; a test bench pressure sensor, horizontally disposed inside the upper end of the pressure sensor support; an external calibration pressure sensor disposed inside the sleeve; a support rod disposed inside the support block; and a drive device disposed on the right side of the product placement rack, with a thrust screw disposed at the movable end of the drive device, and a piston sleeved on the outer wall of the thrust screw. However, this prior art has a relatively complex structure and operation, and is mainly used for precise testing of clamping force, but is not suitable for electrical bench testing. Utility Model Content

[0006] The purpose of this utility model is to provide a brake caliper electrical function testing fixture, which has a simple structure, is easy and flexible to assemble and disassemble, and has strong versatility. It can reduce testing costs and shorten the testing cycle, while ensuring the accuracy and reliability of test results. It can effectively solve the problems of limited applicability, high cost, poor versatility, and difficulty in using existing technologies for bench electrical testing.

[0007] This utility model provides the following solution.

[0008] A brake caliper electrical function testing fixture includes a base. A fixing device is vertically fixed to the middle of the upper surface of the base. A clamping component is disposed opposite to the front of the fixing device, and the bottom surface of the clamping component is slidably in contact with the upper surface of the base. The fixing device includes a fixing plate, the bottom end of which is vertically fixed to the upper surface of the base. Two connecting seats are slidably connected to the fixing plate, and each connecting seat has threaded connecting holes at both ends. The clamping component is disposed opposite to the front of the connecting seats.

[0009] Furthermore, the left and right sides of the fixing plate are respectively provided with strip-shaped holes along the vertical direction. The two strip-shaped holes are slidably connected to the upper and lower connecting seats. Each connecting seat has a strip-shaped structure. The middle part of the connecting seat is provided with connecting holes corresponding to the two strip-shaped holes. A bolt is sleeved in the connecting hole and the bolt is slidably sleeved in the strip-shaped hole. The rear end of the bolt protrudes out of the strip-shaped hole and is threaded with a fastening nut. The connecting seat and the fixing plate can be fixed by screwing the bolt and the fastening nut together.

[0010] The connector can be adjusted up and down to the appropriate position through the strip hole, and then the fastening nut can be tightened to fix it. It can be adapted to brake calipers of different sizes and specifications, increasing its versatility.

[0011] Furthermore, each of the connecting seats has a threaded connecting hole at each of its left and right ends on the front end face. A connecting bolt can be threaded into the threaded connecting hole, and the rear end of the connecting bolt protrudes out of the threaded connecting hole and is threaded with a connecting nut. The connecting seat can be screwed and fixed to the brake caliper through the threaded connecting hole, the connecting bolt, and the connecting nut.

[0012] The front end face of the connector has a threaded connection hole at each of the left and right ends, which can connect and fix two brake calipers at the same time. The upper and lower parts of the brake caliper are respectively provided with mounting holes. The two connectors and the brake caliper are screwed and fixed by connecting bolts that pass through the threaded connection hole and mounting hole on the same side and connecting nuts that are threaded to the connecting bolts.

[0013] Furthermore, the clamping component includes a clamping base, the bottom surface of which is magnetically connected to the upper surface of the base. A straight connecting groove is provided in the middle of the upper surface of the clamping base, and a clamping piece is inserted into the connecting groove. The clamping piece is arranged perpendicular to the upper surface of the clamping base. One edge of the clamping piece has an arc-shaped structure.

[0014] The bottom surface of the clamping base magnetically contacts the upper part of the base, allowing it to move freely while being more stable than when placed directly on the base. One edge of the clamping plate is curved to simulate a car brake disc, enabling the brake caliper to be clamped better and more in line with the actual working state of the brake caliper.

[0015] Furthermore, a sensor mounting hole is provided in the middle of the clamping piece near the arc-shaped edge, and a pressure sensor is detachably connected in the sensor mounting hole; a wire harness opening groove is provided on the clamping piece outside the sensor mounting hole on the side away from the arc-shaped edge, and the wire harness of the pressure sensor can be sleeved in the wire harness opening groove.

[0016] When the brake caliper clamps, it applies pressure to the pressure sensor, which can measure the clamping force of the brake caliper and determine whether the braking requirements are met.

[0017] Furthermore, a pair of clamping plates are pluggable into the connecting groove. Each clamping plate has a sensor mounting hole on the side of its middle near the arc-shaped edge. On the side of the clamping plate opposite to the arc-shaped edge outside the sensor mounting hole, there is a wire harness opening groove. The two wire harness opening grooves face the same direction and are interconnected. A pressure sensor is detachably connected to the sensor mounting hole of one of the clamping plates. The pressure sensor is clamped between the two clamping plates, and the wire harness of the pressure sensor can be sleeved in the two wire harness opening grooves.

[0018] When the brake caliper clamps, it applies pressure to the pressure sensor through two clamping plates, which avoids the brake caliper directly contacting the pressure sensor and makes the pressure sensor more evenly stressed, preventing localized damage.

[0019] Furthermore, the upper and lower parts of the two clamping plates are respectively provided with fixing holes, and the two opposing fixing holes can be connected by bolts and nuts.

[0020] Since there is a gap between the two clamping plates, connecting the two clamping plates with bolts and nuts can prevent the clamping plates from tilting or misaligning, which would affect subsequent testing.

[0021] Furthermore, the left and right sides of the fixing plate are respectively provided with strip-shaped holes along the vertical direction. Two connecting seats are slidably connected in the two strip-shaped holes. Each connecting seat is strip-shaped, and the rear end face of the connecting seat is provided with a sliding groove along the length direction. Two sliders are slidably connected in the sliding groove. A bolt is threadedly connected to the middle of each slider. The bolts on the two sliders are respectively slidably sleeved in the left and right strip-shaped holes. The rear end of the bolt protrudes outside the strip-shaped hole and is threadedly connected with a fastening nut. The connecting seat and the fixing plate can be fixed by screwing the bolts and fastening nuts of the sliders.

[0022] This type of connector can slide left and right and rotate vertically at a certain angle, thus it can fix two different models of brake calipers at the same time, making it more versatile.

[0023] Furthermore, the front end face of the connecting seat has one or two threaded connecting holes at its left and right ends respectively. A connecting bolt can be threaded into the threaded connecting hole. The rear end of the connecting bolt protrudes out of the threaded connecting hole and is threaded with a connecting nut. The connecting seat can be screwed and fixed to the brake caliper through the threaded connecting hole, the connecting bolt and the connecting nut.

[0024] The front end face of the connector can also be provided with two threaded connection holes at the left and right ends, respectively, to connect to the brake calipers with multiple mounting holes at the top and bottom, making the connection more stable.

[0025] Furthermore, two stiffening ribs are fixedly connected to the middle of the rear end face of the fixing plate, and the bottom ends of the two stiffening ribs are fixedly connected to the upper surface of the base.

[0026] The stiffening ribs provide reinforcement, making the connection between the fixing plate and the base more stable.

[0027] This utility model has the following advantages compared with the prior art:

[0028] The brake caliper electrical function testing fixture provided by this utility model has a simple structure and is easy to manufacture. It is connected to the brake caliper with bolts and nuts, making disassembly and assembly convenient and flexible. The position of the connecting seat is adjustable, which is highly versatile. It can also fix two brake calipers for testing at the same time, which can reduce testing costs and shorten the testing cycle. It is equipped with a clamping component to prevent the brake piston from being excessively pushed out of the design stroke due to empty clamping, which would cause it to jam and be unable to reset. At the same time, it ensures the accuracy and reliability of the test results. This utility model can effectively solve the problems of limited applicability, high cost, poor versatility, and difficulty in using it for bench electrical testing in existing technologies. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Appendix Figure 1 This is a schematic diagram of the structure of the brake caliper electrical function testing fixture described in this utility model;

[0031] Appendix Figure 2 This is a schematic diagram of the clamping component described in Embodiment 3 of this utility model;

[0032] Appendix Figure 3 This is a partial structural schematic diagram of the brake caliper electrical function testing fixture described in Embodiment 4 of this utility model.

[0033] In the picture:

[0034] 1. Base; 2. Fixing device; 21. Fixing plate; 211. Strip hole; 22. Connecting seat; 221. Threaded connection hole; 222. Slide groove; 223. Slider; 224. Connecting bolt; 225. Connecting nut; 23. Stiffening rib; 3. Clamping component; 31. Clamping seat; 311. Connecting groove; 32. Clamping piece; 321. Sensor mounting hole; 322. Wire harness opening groove; 323. Fixing hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0037] It should be understood that the term "and / or" used in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0038] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0039] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0040] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0041] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0042] Example 1, please refer to Figure 1 As shown, this utility model provides a brake caliper electrical function testing fixture, including a base 1, which is a rectangular plate structure. A fixing device 2 is vertically fixed to the middle of the upper surface of the base 1. A clamping component 3 is arranged opposite to the front of the fixing device 2, and the clamping component 3 is in contact with the upper surface of the base 1.

[0043] Specifically, the fixing device 2 includes a fixing plate 21, which is rectangular in structure. The bottom end of the fixing plate 21 is vertically fixed to the upper surface of the base 1. Two stiffening ribs 23 are fixedly connected to the middle of the rear end face of the fixing plate 21. The bottom ends of the two stiffening ribs 23 are fixedly connected to the upper surface of the base 1, which serves to reinforce the connection and make the connection between the fixing plate 21 and the base 1 more stable. Slotted holes 211 are provided on the left and right sides of the fixing plate 21 along the vertical direction. Two connecting seats 22 are slidably connected in both slotted holes 211. Each connecting seat 22 is strip-shaped, and the middle of the connecting seat 22 aligns with the two slotted holes 211. The corresponding positions are provided with connecting holes, and bolts are sleeved in the connecting holes. The bolts are slidably sleeved in the strip hole 211. The rear end of the bolt protrudes out of the strip hole 211 and is threaded with a fastening nut. The connecting seat 22 and the fixing plate 21 can be screwed and fixed by the bolts and fastening nuts. The front end face of the connecting seat 22 is provided with a threaded connecting hole at each of the left and right ends, which can simultaneously connect and fix two brake calipers. The upper and lower parts of the brake caliper are provided with mounting holes. The two connecting seats 22 and the brake caliper are screwed and fixed by connecting bolts 224 passing through the threaded connecting holes and mounting holes on the same side and connecting nuts 225 threadedly connected to the connecting bolts 224.

[0044] The clamping component 3 includes a clamping seat 31, which has a rectangular structure. The bottom surface of the clamping seat 31 contacts the upper surface of the base 1. Alternatively, it can be magnetically connected to the upper surface of the base 1 using a magnetic material for a more stable connection. A straight connecting groove 311 is provided in the middle of the upper surface of the clamping seat 31. A clamping piece 32 is inserted and connected in the connecting groove 311. The clamping piece 32 is set perpendicular to the upper surface of the clamping seat 31. One edge of the clamping piece 32 is arc-shaped to simulate a car brake disc, so that the brake caliper can be better clamped, which is more in line with the actual working state of the brake caliper.

[0045] Before conducting the electrical function test of the brake caliper, the brake caliper must be fixed to the fixture. First, slide and adjust the lower connecting seat 22 to a suitable position, tighten the fastening nut to fix it, align the lower mounting hole of the brake caliper with the threaded connection hole on one side of the lower connecting seat 22, and connect it with the connecting bolt 224. Then, connect the upper mounting hole of the brake caliper with the threaded connection hole on the same side of the upper connecting seat 22 with the connecting bolt 224, and tighten the upper and lower connecting nuts 225 to fix it. Subsequently, the same type of brake caliper can be connected and fixed on the other side of the connecting seat 22. After fixing the brake caliper to the fixing device 2, move the clamping component 3 and insert the arc-shaped edge of the clamping plate 32 into the jaw of the brake caliper. After installation, the electrical function test of the brake caliper can be conducted. During the test, the brake caliper will clamp the clamping plate 32, which can prevent the brake piston from being excessively pushed out due to empty clamping, exceeding the design stroke and jamming, resulting in the inability to reset.

[0046] Example 2, please refer to Figure 1 As shown, this utility model provides a brake caliper electrical function testing fixture, which improves the structure of the clamping plate 32 and adds a pressure sensor based on embodiment 1.

[0047] Specifically, a sensor mounting hole is provided on the side of the clamping piece 32 near the arc-shaped edge in the middle, for mounting and fixing the sensor. A wire harness opening groove 322 is provided on the side of the clamping piece 32 away from the arc-shaped edge outside the sensor mounting hole, so that the sensor wire harness can be fixed in the wire harness opening groove 322.

[0048] In this embodiment, a pressure sensor is detachably connected inside the sensor mounting hole. A thin-film pressure sensor is used, and the wire harness of the pressure sensor is sleeved in the wire harness opening groove 322. When the brake caliper clamps, it applies pressure to the pressure sensor, thereby measuring the clamping force of the brake caliper and determining whether the braking requirements are met.

[0049] Example 3, please refer to Figure 2 As shown, this utility model provides a brake caliper electrical function testing fixture, which improves the structure of the clamping component 3 based on embodiment 2.

[0050] Specifically, the clamping component 3 includes a clamping base 31, which has a rectangular structure. The bottom surface of the clamping base 31 contacts the upper surface of the base 1. A straight connecting groove 311 is provided in the middle of the upper surface of the clamping base 31. A pair of clamping pieces 32 are inserted and connected in the connecting groove 311. Each clamping piece 32 is set perpendicular to the upper surface of the clamping base 31. One edge of the clamping piece 32 is arc-shaped. A sensor mounting hole is provided in the middle of the clamping piece 32 near the arc edge for installing and fixing the sensor. A wire harness opening groove 322 is provided on the clamping piece 32 on the side away from the arc edge outside the sensor mounting hole, so that the sensor wire harness can be fixed in the wire harness opening groove 322.

[0051] A pressure sensor is detachably connected to the sensor mounting hole of one of the clamping plates 32. The pressure sensor is clamped between the two clamping plates 32, and the wire harness of the pressure sensor is sleeved in the wire harness opening groove 322. The upper and lower parts of the two clamping plates 32 are provided with fixing holes 323, which can be connected by bolts and nuts. However, the two clamping plates 32 are only fixed and the nuts are not tightened too much to ensure that there is enough clamping space so that the pressure sensor can measure the clamping force of the brake caliper normally. The two clamping plates 32 can also be left unconnected. During installation, the two clamping plates 32 are inserted into the jaws of the brake caliper with their arc edges facing inward. When the brake caliper clamps, it applies pressure to the pressure sensor through the two clamping plates 32, avoiding direct contact between the brake caliper and the pressure sensor, and making the pressure sensor more evenly stressed and preventing local damage.

[0052] Example 4, please refer to Figure 3As shown, this utility model provides a brake caliper electrical function testing fixture, which improves the structure of the fixing device 2 based on any one of embodiments 1-3.

[0053] Specifically, the fixing device 2 includes a fixing plate 21, which is rectangular in structure. The bottom end of the fixing plate 21 is vertically fixed to the upper surface of the base 1. Two stiffening ribs 23 are fixedly connected to the middle of the rear end face of the fixing plate 21. The bottom ends of the two stiffening ribs 23 are fixedly connected to the upper surface of the base 1, which serves to reinforce the connection and make the connection between the fixing plate 21 and the base 1 more stable. Slotted holes 211 are provided on the left and right sides of the fixing plate 21 along the vertical direction. Two connecting seats 22 are slidably connected in the two slotted holes 211. Each connecting seat 22 is strip-shaped, and a groove 222 is provided along the longitudinal direction on the rear end face of the connecting seat 22. Two sliders 223 are slidably connected in the groove 222, and each slider 223 is threaded with a... The bolts on the two sliders 223 are respectively slidably fitted into the left and right strip holes 211. The rear end of the bolt protrudes from the strip hole 211 and is threaded with a fastening nut. The connecting seat 22 and the fixing plate 21 can be screwed together and fixed by the bolts and fastening nuts. The front end face of the connecting seat 22 is provided with a threaded connection hole at each of the left and right ends, which can simultaneously connect and fix two brake calipers. The upper and lower parts of the brake caliper are respectively provided with mounting holes. The two connecting seats 22 and the brake caliper are screwed together and fixed by connecting bolts 224 passing through the threaded connection holes and mounting holes on the same side and connecting nuts 225 threaded to the connecting bolts 224. The connecting seat 22 with this structure can rotate vertically at a certain angle, so two different models of brake calipers can be fixed at the same time.

[0054] The front end face of the connector 22 may also be provided with two threaded connection holes at the left and right ends, respectively, to connect to the brake calipers with multiple mounting holes at the top and bottom, which are of greater mass, making the connection more stable.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A brake caliper electrical function test tool, characterized by, The device includes a base (1), a fixing device (2) is vertically fixed to the middle of the upper surface of the base (1), and a clamping component (3) is arranged opposite to the front of the fixing device (2). The bottom surface of the clamping component (3) is slidably in contact with the upper surface of the base (1). The fixing device (2) includes a fixing plate (21), the bottom end of the fixing plate (21) is vertically fixed to the upper surface of the base (1), and two connecting seats (22) are slidably connected on the fixing plate (21). Each connecting seat (22) has a threaded connection hole (221) at both ends. The clamping component (3) is arranged opposite to the front of the connecting seat (22).

2. The brake caliper electrical function test fixture of claim 1, wherein, The left and right sides of the fixing plate (21) are respectively provided with strip holes (211) in the vertical direction. The two strip holes (211) are slidably connected to the upper and lower connecting seats (22). Each connecting seat (22) has a strip structure. The middle part of the connecting seat (22) is provided with connecting holes corresponding to the two strip holes (211). A bolt is sleeved in the connecting hole and the bolt is slidably sleeved in the strip hole (211). The rear end of the bolt protrudes out of the strip hole (211) and is threaded with a fastening nut. The connecting seat (22) and the fixing plate (21) can be fixed by screwing the bolt and the fastening nut together.

3. The brake caliper electrical function test fixture of claim 1, wherein, Each of the connecting seats (22) has a threaded connecting hole (221) at each of the left and right ends of its front end face. A connecting bolt (224) can be threaded into each threaded connecting hole (221). The rear end of the connecting bolt (224) protrudes out of the threaded connecting hole (221) and is threaded with a connecting nut (225). The connecting seat (22) can be screwed and fixed to the brake caliper through the threaded connecting hole (221), the connecting bolt (224), and the connecting nut (225).

4. The brake caliper electrical function test fixture of claim 1, wherein, The clamping component (3) includes a clamping seat (31), the bottom surface of the clamping seat (31) is magnetically contacted with the upper surface of the base (1), and a straight connecting groove (311) is provided in the middle of the upper surface of the clamping seat (31). A clamping piece (32) is inserted and connected in the connecting groove (311), and the clamping piece (32) is set perpendicular to the upper surface of the clamping seat (31). One side edge of the clamping piece (32) is an arc-shaped structure.

5. The brake caliper electrical function test fixture of claim 4, wherein, The clamping piece (32) has a sensor mounting hole (321) on the side of the arc edge in the middle, and a pressure sensor can be detachably connected in the sensor mounting hole (321); a wire harness opening groove (322) is provided on the clamping piece (32) on the side of the sensor mounting hole (321) away from the arc edge, and the wire harness of the pressure sensor can be sleeved in the wire harness opening groove (322).

6. The brake caliper electrical function test fixture of claim 4, wherein, A pair of clamping plates (32) are inserted into the connecting groove (311). The middle part of the two clamping plates (32) near the arc edge is provided with a sensor mounting hole (321). The clamping plate (32) on the side away from the arc edge outside the sensor mounting hole (321) is provided with a wire harness opening groove (322). The two wire harness opening grooves (322) face the same direction and are interconnected. A pressure sensor is detachably connected in the sensor mounting hole (321) of one of the clamping plates (32). The pressure sensor is clamped between the two clamping plates (32). The wire harness of the pressure sensor can be sleeved in the two wire harness opening grooves (322).

7. The brake caliper electrical function test fixture of claim 6, wherein, The upper and lower parts of the two clamping plates (32) are respectively provided with fixing holes (323), and the two fixing holes (323) can be connected by bolts and nuts.

8. The brake caliper electrical function test fixture of claim 1, wherein, The fixing plate (21) has strip holes (211) on its left and right sides respectively along the vertical direction. Two connecting seats (22) are slidably connected in the two strip holes (211). Each connecting seat (22) is strip-shaped. A groove (222) is provided on the rear end face of the connecting seat (22) along the longitudinal direction. Two sliders (223) are slidably connected in the groove (222). A bolt is threaded in the middle of each slider (223). The bolts on the two sliders (223) are slidably sleeved in the left and right strip holes (211) respectively. The rear end of the bolt protrudes out of the strip hole (211) and is threaded with a fastening nut. The connecting seat (22) and the fixing plate (21) can be fixed by screwing the bolts and fastening nuts of the sliders (223).

9. The brake caliper electrical function testing fixture according to claim 8, characterized in that, The front end face of the connecting seat (22) has one or two threaded connecting holes (221) at the left and right ends respectively. Each threaded connecting hole (221) can be threaded with a connecting bolt (224). The rear end of the connecting bolt (224) protrudes outside the threaded connecting hole (221) and is threaded with a connecting nut (225). The connecting seat (22) can be screwed and fixed to the brake caliper through the threaded connecting hole (221), the connecting bolt (224) and the connecting nut (225).

10. The brake caliper electrical function testing fixture according to claim 1, characterized in that, Two stiffening ribs (23) are fixedly connected to the middle of the rear end face of the fixed plate (21), and the bottom ends of the two stiffening ribs (23) are fixedly connected to the upper surface of the base (1).

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