Comprehensive location degree testing fixture for exhaust elbow of supercharger
By designing a comprehensive positional gauge for the exhaust bend of a turbocharger, and utilizing a combination of gauge brackets and inspection components, the problems of long inspection time and high cost in mass production were solved, enabling rapid and low-cost parts inspection.
Patent Information
- Application Number
- CN202423205637.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In mass production, existing technologies require specialized coordinate measuring machines to detect the position of the turbocharger exhaust bend, resulting in long testing times, high costs, and unsuitability for on-site measurement, making it difficult to meet the needs of rapid testing.
Design a comprehensive positional inspection tool for turbocharger exhaust bends, including a tool bracket, a first inspection component, a second inspection component, a third inspection component, and a clamping device. Through the combination of positioning blocks, guide sleeves, and inspection shafts, rapid positioning and inspection of the workpiece can be achieved.
It enables rapid inspection of the conformity of large batches of parts, reduces labor intensity and costs, shortens the inspection period, and improves work efficiency.
Smart Images
Figure CN223500300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive parts testing, specifically to a comprehensive position measurement tool for turbocharger exhaust pipe bends. Background Technology
[0002] The turbocharger exhaust bend requires high precision and withstands significant high-temperature impact, making it a crucial component of the engine. The turbocharger exhaust bends currently produced by our company have the specific structure shown in Figure 1. One end of the turbocharger exhaust bend is designated as the small circular end, with a small hole on its surface. The other end is designated as the large circular end, with four raised pillars on its side, each with side holes. During small-batch production, measurements are taken using the small circular end face and outer circle of the exhaust bend as reference holes; the positional accuracy of the remaining large circle and other holes is entirely determined using a coordinate measuring machine.
[0003] The positional accuracy of a coordinate measuring machine (CMM) is typically determined by measuring the deviation between the actual and theoretical elements. For the positional accuracy of an exhaust bend, the following steps are generally required: determining the reference point and theoretical position, calculating the positional deviation, assessing the maximum deviation, and generating a test report. These steps effectively detect the positional accuracy of the exhaust bend, ensuring it meets design and functional requirements. However, this product testing requires a high level of technical expertise, necessitates professional CMM personnel, is time-consuming, expensive, and is not suitable for on-site measurement during production.
[0004] As the production volume of this product continues to grow, a large number of parts need to be inspected. If the inspection is still carried out on a coordinate measuring machine, the process will take longer, and the cost and labor intensity will be greater. Therefore, it is necessary to design a comprehensive positional inspection tool for the exhaust pipe of the turbocharger, which is easy to operate and can quickly detect whether the parts are qualified. Utility Model Content
[0005] The purpose of this utility model is to provide a comprehensive positional inspection tool for the exhaust pipe of a turbocharger, which is easy to operate and can quickly detect whether the parts are qualified.
[0006] The technical solution adopted by this utility model is as follows:
[0007] A comprehensive position gauge for a turbocharger exhaust bend includes a gauge bracket, on which a first detection component, a second detection component, a third detection component, a positioning block, and a clamping device are provided.
[0008] The positioning block is detachably fixed in the middle of the fixture bracket. A positioning shaft is provided in the middle of the top of the positioning block. The outer diameter of the positioning shaft is smaller than the outer diameter of the positioning block. The small round end of the workpiece is sleeved on the positioning shaft to play a positioning role. Two symmetrical clamping devices are provided in the circumference of the positioning block. The clamping devices are detachably installed on the fixture bracket to clamp the workpiece.
[0009] The first inspection component includes a first bracket, a first guide sleeve, and a first inspection shaft. The first bracket is detachably fixed to the top of the inspection fixture bracket. The first guide sleeve is fixed on the first bracket and corresponds one-to-one with the side hole to be inspected. The first inspection shaft is slidably connected inside the first guide sleeve. Specifically, there are four first guide sleeves, and each of the four first guide sleeves is equipped with a first inspection shaft for inspecting the position of the four holes on the side of the workpiece.
[0010] The second inspection component includes a second bracket, a second guide sleeve, and a second inspection shaft. The second bracket is detachably fixed to the top of the fixture bracket. The second guide sleeve is fixed to the top of the second bracket. The second inspection shaft is slidably connected inside the second guide sleeve. The bottom end of the second inspection shaft is provided with an inspection plate. The bottom of the inspection plate is provided with a positioning groove for cooperating with the large circular end of the workpiece to play a positioning role and also for inspecting the hole at the large circular end of the workpiece.
[0011] The third inspection component includes a third guide sleeve and a third inspection shaft. The third guide sleeve is fixed to the bottom of the fixture bracket. The third inspection shaft is slidably connected inside the third guide sleeve. The positioning block is provided with an inspection groove that communicates with the third guide sleeve, which facilitates the up and down sliding of the third inspection shaft. It is used to inspect the holes on the small round end face at the bottom of the workpiece.
[0012] The third detection component also includes a spring, a limiting pad, and a locking nut. The limiting pad is detachably fixed to the lower part of the third detection shaft. The locking nut is threadedly connected to the bottom of the third detection shaft, and the top of the locking nut contacts the top of the limiting pad. The spring is sleeved on the third detection shaft and positioned between the third guide sleeve and the limiting pad. The spring's rebound causes the third detection shaft to automatically return to its original position.
[0013] The first, second, and third detection components all include a limiting pin. The first, second, and third guide sleeves all include a guide sleeve body with a limiting hole. The limiting pin is detachably fixed in the limiting hole, and the inner end of the limiting pin extends into the guide sleeve body. The first, second, and third detection shafts all have notches corresponding to the limiting pins. The notches are arranged along their length direction, and there is a gap between the limiting pin and the notch wall to facilitate the sliding of the first, second, and third detection shafts. When the limiting pin contacts the end of the notch, it plays a limiting role to prevent the first, second, and third detection shafts from coming out of the corresponding guide sleeve body.
[0014] The first, second, and third detection components all include an operating handle. One end of the first, second, and third detection shafts is designated as the operating end, and the other end as the detection end. The operating handle is fixed to the operating end. Holding the operating handle facilitates the movement of the first, second, and third detection shafts. The detection ends of the first and third detection shafts are both stepped, and the part used for detection is designated as the detection section. The outer wall of the detection section mates with the wall of the hole to be detected, and is used to detect whether the corresponding hole is qualified.
[0015] The second support includes a support plate and an assembly plate. The support plate is detachably fixed to the top of the inspection fixture support. The top of the support plate has an inclined surface. One end of the assembly plate is detachably fixed to the inclined surface to adapt to the curvature of the workpiece. The other end of the assembly plate has an assembly hole for the second guide sleeve. The second detection shaft is set in the assembly hole so that the detection plate at the bottom of the second detection shaft is parallel to the large circular end face at the top of the workpiece.
[0016] The clamping device includes a quick clamp, a pressure plate, and a hinge seat. The hinge seat is detachably fixed to the bottom of the fixture bracket. The fixture bracket has mounting holes. The pressure plate passes through the mounting holes and is spaced apart from the wall of the mounting holes. The right side of the top of the pressure plate is hinged to the free end of the quick clamp. The left side of the top of the pressure plate has a clamping part. The bottom of the pressure plate is hinged to the hinge seat. The quick clamp includes a base, an operating handle, and a pressure rod. The base is detachably fixed to the top of the fixture bracket. The operating handle and the pressure rod are respectively hinged to the top of the base. The free end of the quick clamp is the outer end of the pressure rod. This is existing technology and will not be described in detail here. The quick clamp is also called a quick clamping clamp and can be purchased in major shopping malls.
[0017] The fixture support includes a support plate, support legs, and handling handles. The first detection component, the second detection component, the third detection component, the positioning block, and the clamping device are all mounted on the support plate. The top of the support legs is fixed to the bottom of the support plate, and handling handles are fixed to both ends of the support plate to facilitate the handling of the fixture.
[0018] The beneficial effects of this utility model are:
[0019] (1) It has a simple structure and is easy and quick to operate. It can quickly test a large number of parts, reduce labor intensity and testing costs, shorten the testing period and improve work efficiency.
[0020] (2) The positioning shaft on the positioning block cooperates with the positioning groove on the detection plate of the second detection component to perform positioning function, which facilitates the placement of the workpiece in place and is also used to detect whether the small round end and the large round end of the workpiece are qualified; the first detection shaft of the first detection component can slide along the first guide sleeve to detect whether the hole on the side of the workpiece is qualified; the third detection shaft of the third detection component can slide along the third guide sleeve to detect whether the small hole at the bottom of the small round end of the workpiece is qualified.
[0021] (3) The positioning block is provided with two symmetrical clamping devices in the circumference. The clamping devices can be detachably installed on the inspection fixture bracket to clamp the workpiece. Attached Figure Description
[0022] Figure 1 A schematic diagram of the turbocharger exhaust bend;
[0023] Figure 2 This is a schematic diagram of the structure of the present invention and the turbocharger exhaust bend;
[0024] Figure 3 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 4 This is a top view of the structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the structure of the first detection component;
[0027] Figure 6 This is a schematic diagram of the clamping device.
[0028] Figure 7 This is a schematic diagram of the positioning block and the third detection component;
[0029] Figure 8 This is a schematic diagram of the third detection component;
[0030] Figure 9 This is a schematic diagram of the third detection axis;
[0031] Figure 10 Schematic diagram of the second detection axis.
[0032] In the diagram: 1-Large round end, 2-Protruding column, 3-Side hole, 4-Protruding ring, 5-Small round end, 6-Small hole, 7-Inspection fixture bracket, 8-Clamping device, 9-Second inspection component, 10-Bracket plate, 11-Assembly plate, 12-Operating handle, 13-Second guide sleeve, 14-Inspection disc, 15-First inspection component, 16-Pressure plate, 17-Pressure rod, 18-Operating handle, 19-Quick clamp, 20-Base, 21-Transfer handle, 22-Support leg, 2 3-Support plate, 24-Hinge seat, 25-Third detection component, 26-First guide sleeve, 27-First detection shaft, 28-Detection groove, 29-Positioning block, 30-Positioning shaft, 31-Mounting hole, 32-Second detection shaft, 33-First bracket, 34-Pressure part, 35-Detection part, 36-Notch, 37-Limit pin, 38-Positioning groove, 39-Third guide sleeve, 40-Spring, 41-Third detection shaft, 42-Limit pad, 43-Locking nut. Detailed Implementation
[0033] like Figure 1-10 As shown, a comprehensive position gauge for a turbocharger exhaust bend includes a gauge bracket 7, on which a first detection component 15, a second detection component 9, a third detection component 25, a positioning block 29, and a clamping device 8 are provided.
[0034] The positioning block 29 is detachably fixed in the middle of the fixture bracket 7. The positioning shaft 30 is provided in the middle of the top of the positioning block 29. The outer diameter of the positioning shaft 30 is smaller than the outer diameter of the positioning block 29. The small round end 5 of the workpiece is sleeved on the positioning shaft 30 for positioning. The positioning block 29 is provided with two symmetrical clamping devices 8 in the circumference. The clamping devices 8 are detachably installed on the fixture bracket 7 for clamping the workpiece.
[0035] The first detection component 15 includes a first bracket 33, a first guide sleeve 26, and a first detection shaft 27. The first bracket 33 is detachably fixed to the top of the fixture bracket 7. The first guide sleeve 26, which corresponds one-to-one with the side hole 3 to be detected, is fixed on the first bracket 33. The first detection shaft 27 is slidably connected inside the first guide sleeve 26. Specifically, there are four first guide sleeves 26, and each of the four first guide sleeves 26 is provided with a first detection shaft 27 for detecting the position of the four holes on the side of the workpiece.
[0036] The second detection component 9 includes a second bracket, a second guide sleeve 13, and a second detection shaft 32. The second bracket is detachably fixed to the top of the fixture bracket 7. The second guide sleeve 13 is fixed to the top of the second bracket. The second detection shaft 32 is slidably connected inside the second guide sleeve 13. The bottom end of the second detection shaft 32 is provided with a detection disk 14. The bottom of the detection disk 14 is provided with a positioning groove 38, which is used to cooperate with the large round end 1 of the workpiece for positioning and also for detecting the hole of the large round end 1 of the workpiece.
[0037] The third detection component 25 includes a third guide sleeve 39 and a third detection shaft 41. The third guide sleeve 39 is fixed to the bottom of the fixture bracket 7. The third detection shaft 41 is slidably connected inside the third guide sleeve 39. The positioning block 29 is provided with a detection groove 28 that communicates with the third guide sleeve 39, so that the third detection shaft 41 can slide up and down and is used to detect the hole on the small round end 5 at the bottom of the workpiece.
[0038] The third detection component 25 also includes a spring 40, a limiting pad 42, and a locking nut 43. The limiting pad 42 is detachably fixed to the lower part of the third detection shaft 41. The locking nut 43 is threadedly connected to the bottom of the third detection shaft 41, and the top of the locking nut 43 contacts the top of the limiting pad 42. The spring 40 is sleeved on the third detection shaft 41 and positioned between the third guide sleeve 39 and the limiting pad 42. The spring 40's rebound causes the third detection shaft 41 to automatically return to its original position.
[0039] The first detection component 15, the second detection component 9, and the third detection component 25 all include a limiting pin 37. The first guide sleeve 26, the second guide sleeve 13, and the third guide sleeve 39 all include a guide sleeve body with a limiting hole. The limiting pin 37 is detachably fixed in the limiting hole, and the inner end of the limiting pin 37 extends into the guide sleeve body. The first detection shaft 27, the second detection shaft 32, and the third detection shaft 41 are all provided with a notch 36 corresponding to the limiting pin 37. The notch 36 is arranged along its length direction, and there is a gap between the limiting pin 37 and the wall of the notch 36 to facilitate the sliding of the first detection shaft 27, the second detection shaft 32, and the third detection shaft 41. When the limiting pin 37 contacts the end of the notch 36, it plays a limiting role to prevent the first detection shaft 27, the second detection shaft 32, and the third detection shaft 41 from coming out of the corresponding guide sleeve body.
[0040] The first detection component 15, the second detection component 9, and the third detection component 25 all include an operating handle 12. One end of the first detection shaft 27, the second detection shaft 32, and the third detection shaft 41 is referred to as the operating end, and the other end is referred to as the detection end. The operating handle 12 is fixed to the operating end. Holding the operating handle 12 facilitates the movement of the first detection shaft 27, the second detection shaft 32, and the third detection shaft 41. The detection ends of the first detection shaft 27 and the third detection shaft 41 are both stepped. The part used for detection is referred to as the detection part 35. The outer wall of the detection part 35 cooperates with the wall of the hole to be detected and is used to detect whether the corresponding hole is qualified.
[0041] The second support includes a support plate 10 and an assembly plate 11. The support plate 10 is detachably fixed to the top of the inspection fixture support 7. The top of the support plate 10 is provided with an inclined surface. One end of the assembly plate 11 is detachably fixed to the inclined surface to adapt to the curvature of the workpiece. The other end of the assembly plate 11 is provided with an assembly hole for the second guide sleeve 13 to cooperate with. The second detection shaft 32 is set in the assembly hole so that the detection disk 14 at the bottom of the second detection shaft 32 is parallel to the large circular end 1 of the top of the workpiece.
[0042] The clamping device 8 includes a quick clamp 19, a pressure plate 16, and a hinge seat 24. The hinge seat 24 is detachably fixed to the bottom of the inspection fixture bracket 7. The inspection fixture bracket 7 is provided with a mounting hole 31. The pressure plate 16 passes through the mounting hole 31 and is spaced apart from the wall of the mounting hole 31. The right side of the top of the pressure plate 16 is hinged to the free end of the quick clamp 19. The left side of the top of the pressure plate 16 is provided with a clamping part 34. The bottom of the pressure plate 16 is hinged to the hinge seat 24. The quick clamp 19 includes a base 20, an operating handle 18, a pressure rod 17, etc. The base 20 is detachably fixed to the top of the inspection fixture bracket 7. The operating handle 18 and the pressure rod 17 are respectively hinged to the top of the base 20. The free end of the quick clamp 19 is the outer end of the pressure rod 17. This is prior art and will not be described in detail here. The quick clamp 19 is also called a quick clamp and can be purchased in major shopping malls.
[0043] The inspection fixture bracket 7 includes a support plate 23, support legs 22, and a handling handle 21. The first inspection component 15, the second inspection component 9, the third inspection component 25, the positioning block 29, and the clamping device 8 are all installed on the support plate 23. The top of the support leg 22 is fixed to the bottom of the support plate 23. The two ends of the support plate 23 are fixed with handling handles 21 to facilitate the handling of the inspection fixture.
[0044] The method of using this utility model is as follows:
[0045] Step 1: Place the workpiece on the positioning block 29. The outer wall of the positioning shaft 30 on the positioning block 29 is in contact with the inner wall of the small round end 5 of the workpiece. Rotate the workpiece so that the direction of the side hole 3 of the workpiece is approximately the same as the direction of the hole of the bushing on the first detection component 15.
[0046] Step 2: Hold the operating handle 12 on the second detection shaft 32 and move the second detection shaft 32 toward the workpiece. The second detection shaft 32 drives the detection disk 14 toward the workpiece until the large round end 1 of the workpiece is set in the positioning groove 38. The outer wall of the large round end 1 cooperates with the inner wall of the positioning groove 38 to play a positioning role.
[0047] Step 3: The bottom outer wall of the workpiece extends outward to form a raised ring 4. The quick clamp 19 is operated, and the quick clamp 19 moves the pressure plate 16 towards the bottom of the workpiece to the pressing part 34 at the top of the pressure plate 16, pressing it against the top of the raised ring 4 of the workpiece, thus pressing the workpiece tightly.
[0048] Step 4: Use the first detection component 15 and the third detection component 25 to check whether the corresponding hole is qualified. That is, hold the operating handle 12 of the first detection shaft 27 and the third detection shaft 41 and move it towards the workpiece. If the detection part 35 at the front end of the first detection shaft 27 and the detection part 35 at the front end of the third detection shaft 41 can move flexibly along the corresponding hole, then the position of the corresponding hole is qualified. Otherwise, it is unqualified. This completes the workpiece inspection.
[0049] Step 5: Release the quick clamp 19, move the clamping part 34 of the pressure plate 16 away from the workpiece, and move the first detection shaft 27, the detection plate 14 and the third detection shaft 41 out of the corresponding holes. The workpiece can then be removed to complete the inspection.
[0050] The workpiece described in this utility model is a turbocharger exhaust bend, and its specific structure is shown in Figure 1. One end of the turbocharger exhaust bend is designated as the small round end 5, and a small hole 6 is provided on the surface of the small round end 5. The other end is designated as the large round end 1, and four protruding pillars 2 are provided on its side. Side holes 3 are provided on the protruding pillars 2. The bottom outer wall of the workpiece extends outward to form a protruding ring 4.
[0051] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 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 this utility model.
[0052] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.
Claims
1. A comprehensive position measurement fixture for a turbocharger exhaust bend, comprising a fixture support, characterized in that: The inspection fixture bracket is equipped with a first inspection component, a second inspection component, a third inspection component, a positioning block, and a clamping device; The positioning block is detachably fixed in the middle of the fixture bracket, and a positioning shaft is provided in the middle of the top of the positioning block; two symmetrical clamping devices are provided around the positioning block, and the clamping devices are detachably installed on the fixture bracket. The first detection component includes a first bracket, a first guide sleeve, and a first detection shaft. The first bracket is detachably fixed to the top of the fixture bracket. The first guide sleeve, which corresponds one-to-one with the side hole to be detected, is fixed on the first bracket. The first detection shaft is slidably connected inside the first guide sleeve. The second detection component includes a second bracket, a second guide sleeve, and a second detection shaft. The second bracket is detachably fixed to the top of the fixture bracket, the second guide sleeve is fixed to the top of the second bracket, and the second detection shaft is slidably connected inside the second guide sleeve. The bottom end of the second detection shaft is provided with a detection plate, and the bottom of the detection plate is provided with a positioning groove. The third detection component includes a third guide sleeve and a third detection shaft. The third guide sleeve is fixed to the bottom of the fixture bracket, and the third detection shaft is slidably connected inside the third guide sleeve. The positioning block is provided with a detection groove that communicates with the third guide sleeve.
2. The turbocharger exhaust bend comprehensive position gauge as described in claim 1, characterized in that: The third detection component also includes a spring, a limiting pad, and a locking nut. The limiting pad is detachably fixed to the lower part of the third detection shaft. The locking nut is threadedly connected to the bottom of the third detection shaft, and the top of the locking nut contacts the top of the limiting pad. The spring is sleeved on the third detection shaft and positioned between the third guide sleeve and the limiting pad.
3. The turbocharger exhaust bend comprehensive position gauge as described in claim 1, characterized in that: The first detection component, the second detection component, and the third detection component all include a limiting pin. The first guide sleeve, the second guide sleeve, and the third guide sleeve all include a guide sleeve body. The guide sleeve body is provided with a limiting hole. The limiting pin is detachably fixed in the limiting hole. The inner end of the limiting pin extends into the guide sleeve body. The first detection shaft, the second detection shaft, and the third detection shaft are all provided with notches corresponding to the limiting pins.
4. The turbocharger exhaust bend comprehensive position measurement fixture as described in claim 1, characterized in that: The first detection component, the second detection component, and the third detection component all include an operating handle. One end of the first detection shaft, the second detection shaft, and the third detection shaft is referred to as the operating end, and the other end is referred to as the detection end. The operating handle is fixed to the operating end. The detection ends of the first detection shaft and the third detection shaft are both stepped, and the part used for detection is referred to as the detection section.
5. The turbocharger exhaust bend comprehensive position measurement fixture as described in claim 1, characterized in that: The second bracket includes a bracket plate and an assembly plate. The bracket plate is detachably fixed to the top of the inspection fixture bracket. The top of the bracket plate is provided with an inclined surface. One end of the assembly plate is detachably fixed to the inclined surface, and the other end of the assembly plate is provided with an assembly hole for the second guide sleeve.
6. The turbocharger exhaust bend comprehensive position measurement fixture as described in claim 1, characterized in that: The clamping device includes a quick clamp, a pressure plate, and a hinge seat. The hinge seat is detachably fixed to the bottom of the inspection fixture bracket. The inspection fixture bracket has a mounting hole. The pressure plate passes through the mounting hole and is spaced apart from the wall of the mounting hole. The right side of the top of the pressure plate is hinged to the free end of the quick clamp. The left side of the top of the pressure plate has a clamping part. The bottom of the pressure plate is hinged to the hinge seat.
7. The turbocharger exhaust bend comprehensive position measurement fixture as described in claim 1, characterized in that: The inspection fixture bracket includes a support plate, support legs, and handling handles. The first inspection component, the second inspection component, the third inspection component, the positioning block, and the clamping device are all mounted on the support plate. The top of the support legs is fixed to the bottom of the support plate, and handling handles are fixed to both ends of the support plate.