A rim static pressure detection tool

Abstract

The utility model discloses a kind of rim static pressure detection tool, including left support frame and right support frame, the top surface of the top plate of left support frame is fixed with two left vertical frames, the top surface of the top plate of right support frame is fixed with two right vertical frames, two vertical rods between two left vertical frames form slot, two vertical plates between two right vertical frames form right slot;The left end of transverse support rod is inserted in slot, its outer side wall is close to the inner side wall of slot, the right end of transverse support rod is fixed with connecting column, the right end of connecting column is fixed with counterweight limiting plate body, counterweight limiting plate body is inserted in right slot, the front and back side wall of counterweight limiting plate body is close to the front side wall or rear side wall of right slot;It is installed in transverse support rod by hub, and by its left end installation counterweight block, so that it keeps balance, simultaneously, by two bending limiting blocks, right limiting strip and upper limiting block, the limiting of hub is realized, so that detection test will not be inclined, guarantee detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing equipment technology, and more specifically to a wheel rim static pressure testing fixture. Background Technology

[0002] After the existing wheel hub is processed, the inner rim part of the aluminum wheel hub needs to be subjected to pressure. This is done by pressing the wheel hub vertically. The wheel hub is mounted on a horizontal bar, and the two ends of the horizontal bar are inserted into the limiting slots on the left and right sides to obtain the maximum load on the inner rim part. However, the horizontal bar and the wheel hub do not have a limiting structure, and the wheel hub is prone to move left and right during the pressing, which affects the test results. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a wheel rim static pressure testing fixture. It maintains balance by mounting the wheel hub on a transverse support rod and installing a counterweight on its left end. At the same time, the wheel hub is limited by two bending limit blocks, a right limit strip and an upper limit block, so that it will not tilt during the test and the accuracy of the test is guaranteed.

[0004] The solution of this utility model to the aforementioned technical problem is:

[0005] A wheel rim static pressure testing fixture includes a left support frame and a right support frame. Two left vertical frames are fixed on the top surface of the top plate of the left support frame, and two right vertical frames are fixed on the top surface of the top plate of the right support frame. A slot is formed between the two vertical rods of the two left vertical frames, and a right slot is formed between the two vertical plates of the two right vertical frames.

[0006] The left end of the transverse support rod is inserted into the slot, and its outer side wall is close to the inner side wall of the slot. The right end of the transverse support rod is fixed with a connecting column, and the right end of the connecting column is fixed with a counterweight limiting plate. The counterweight limiting plate is inserted into the right slot, and the front and rear side walls of the counterweight limiting plate are close to the front or rear side wall of the right slot.

[0007] The wheel hub sleeve to be tested is fixed to the connecting post by bolts.

[0008] The left side of the transverse support rod extends out of the left end of the slot and is fitted with a counterweight. Limit sleeves are fitted on the transverse support rods on both sides of the counterweight. The limit sleeves are fixedly connected to the transverse support rods by set bolts, and the counterweight is located between the two limit sleeves.

[0009] A lower support frame is fixed on the ground between the left and right support frames. A lower clamping cylinder is fixed in the middle of the bottom surface of the top plate of the lower support frame. The top of the push rod of the lower clamping cylinder extends out of the top surface of the top plate of the lower support frame and is fixed with a lower clamping plate. Bending limit blocks are fixed on the left and right sides of the lower clamping plate. The left and right ends of the wheel hub are close to the corresponding inner sidewalls of the corresponding bending limit blocks.

[0010] Multiple vertical support columns are fixed on the ground outside the left and right support frames. The top plate is fixed on the top surface of all the vertical support columns on the left and right sides. A screw hole is formed in the middle of the top plate. A vertical adjustment stud is screwed into the screw hole. The bottom end of the vertical adjustment stud extends out of the bottom surface of the top plate and is movably connected to the upper connecting plate. A pressure sensor is fixed on the bottom surface of the upper connecting plate. An upper pressure plate is fixed on the bottom surface of the sensing end of the pressure sensor. A clamping block is fixed on the right side of the bottom surface of the upper pressure plate. The bottom surface of the clamping block faces the right rim of the wheel hub.

[0011] The pressure sensor is located on the top surface of the upper pressure plate directly above the clamping block. A right limiting strip is fixed to the bottom right side of the clamping block, and the left side wall of the right limiting strip is close to the upper right side wall of the wheel rim of the wheel hub.

[0012] An upper limit block is fixed to the left side of the bottom surface of the upper pressure plate, and the right side wall of the upper limit block corresponds to the upper part of the left end face of the wheel hub.

[0013] The outstanding effect of this utility model is:

[0014] Compared with existing technologies, it maintains overall balance by mounting the wheel hub on a transverse support rod and adjusting the left and right movement of the counterweight block installed on its left end, combined with the counterweight limiting plate at the right end. At the same time, the wheel hub is limited by two bending limiting blocks, a right limiting strip, and an upper limiting block, so that it will not tilt during the test and ensures the accuracy of the test. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 yes Figure 3 A schematic diagram of the local structure from a different angle. Detailed Implementation

[0019] For example, see below. Figures 1 to 4As shown, a wheel rim static pressure testing fixture includes a left support frame 10 and a right support frame 20. Two left vertical frames 11 are fixed on the top surface of the top plate of the left support frame 10, and two right vertical frames 21 are fixed on the top surface of the top plate of the right support frame 20. A slot 1 is formed between the two vertical rods 12 of the two left vertical frames 11, and a right slot 2 is formed between the two vertical plates 22 of the two right vertical frames 21.

[0020] The left end of the transverse support rod 30 is inserted into the slot 1, and its outer side wall is close to the inner side wall of the slot 1. The right end of the transverse support rod 30 is fixed with a connecting post 31, and the right end of the connecting post 31 is fixed with a counterweight limiting plate 32. The counterweight limiting plate 32 is inserted into the right slot 2, and the front and rear side walls of the counterweight limiting plate 32 are close to the front or rear side wall of the right slot 2.

[0021] The wheel hub 100 to be tested is inserted into the connecting post 31 and is fixedly connected to the connecting post 31 by bolts.

[0022] Furthermore, the left end of the transverse support rod 30 extends out of the slot 1 and is fitted with a counterweight 3. Limiting sleeves 4 are fitted onto the transverse support rod 30 on both sides of the counterweight 3. The limiting sleeves 4 are fixedly connected to the transverse support rod 30 by set bolts. The counterweight 3 is positioned between the two limiting sleeves 4 (it can be clamped between the two limiting sleeves 4 to achieve limited positioning). The set bolts can be loosened or loosened as needed to move the positions of the limiting sleeves 4 and the counterweight 3, or the limiting sleeves 4 and the counterweight 3 can be disassembled and replaced with counterweights of different weights to ensure the overall balance of the transverse support rod 30 after the wheel hub 100 is installed (since the wheel hub 100 is located on the right side of the transverse support rod 30, and the right-side counterweight limiting plate 32 makes the right side heavier, a counterweight 3 is installed on the left side to achieve balance).

[0023] Furthermore, a lower support frame 40 is fixed on the ground between the left support frame 10 and the right support frame 20. A lower clamping cylinder 41 is fixed in the middle of the bottom surface of the top plate of the lower support frame 40. The top end of the push rod of the lower clamping cylinder 41 extends out of the top surface of the top plate of the lower support frame 40 and is fixed with a lower clamping plate 42. Bending limit blocks 43 are fixed on the left and right sides of the lower clamping plate 42. The left and right ends of the wheel hub 100 are close to the corresponding inner sides of the bending limit blocks 43. The wall has multiple waist-shaped through slots formed on the bottom horizontal plate of the two bending limiting blocks 43. The bolts are inserted into the waist-shaped through slots and screwed onto the lower pressing plate 42 for fixation (the bottom horizontal plate of the bending limiting block 43 is clamped between the lower pressing plate 42 and the rotating part of the bolt). The position of the bending limiting block 43 can be changed by loosening the bolts and moving it, so as to ensure that it can limit the lower left and right sides of the wheel hub 100 of different sizes.

[0024] Furthermore, the bottom surface of the lower pressing plate 42 is fixed with a plurality of first vertical guide rods 44, which are inserted into guide sleeves fixed in guide through holes formed in the top plate of the lower support frame 40.

[0025] Furthermore, multiple vertical support columns 50 are fixed on the ground outside the left support frame 10 and the right support frame 20. The upper top plate 51 is fixed on the top surface of all the vertical support columns 50 on the left and right sides. A screw-in through hole is formed in the middle of the upper top plate 51. A vertical adjusting stud 52 is screwed into the screw-in through hole. The bottom end of the vertical adjusting stud 52 extends out of the bottom surface of the upper top plate 51 and is movably connected to an upper connecting plate 53. A pressure sensor 54 is fixed on the bottom surface of the upper connecting plate 53. An upper pressure plate 55 is fixed on the bottom surface of the sensing end of the pressure sensor 54. A pressing block 56 is fixed on the right side of the bottom surface of the upper pressure plate 55. The bottom surface of the pressing block 56 faces the right side rim 101 of the hub 100.

[0026] Furthermore, the pressure sensor 54 is located on the top surface of the upper pressure plate 55 directly above the clamping block 56. A right limiting strip 57 is fixed to the bottom right side of the clamping block 56, and the left side wall of the right limiting strip 57 is close to the upper right side wall of the rim of the wheel hub 100. The right limiting strip 57 has multiple waist-shaped through grooves formed on it. It is fixed by inserting the threaded part of the bolt into the waist-shaped through grooves and screwing it to the bottom surface of the clamping block 56. The right limiting strip 57 is clamped between the rotating part of the bolt and the bottom surface of the clamping block 56. By loosening the bolt, the right limiting strip 57 can be moved laterally, thereby changing the position of the right limiting strip 57 to meet the limiting of the upper right side of different wheel hubs 100.

[0027] Furthermore, a plurality of vertical guide rods 531 are fixed on the top surface of the upper connecting plate 53, and the vertical guide rods 531 are inserted into guide sleeves fixed on the inner side wall of the guide through hole formed on the upper top plate 51.

[0028] Furthermore, a locking nut 58 is screwed onto the vertical adjusting stud 52, and the bottom surface of the locking nut 58 presses against the top surface of the upper top plate 51.

[0029] The height of the clamping block 56 can be changed by loosening the locking nut 58 and rotating the vertical adjusting stud 52 to adjust it to the required height. After adjustment, the locking nut 58 can be tightened.

[0030] Furthermore, an upper limit block 59 is fixed to the left side of the bottom surface of the upper pressure plate 55, and the right side wall of the upper limit block 59 corresponds to the upper part of the left end face of the wheel hub 100. Multiple waist-shaped through slots are formed on the horizontal part of the upper limit block 59, which are inserted into the waist-shaped through slots and screwed to the bottom surface of the upper pressure plate 55 by the threaded part of a bolt for fixation. The upper limit block 59 can be moved laterally by loosening the bolts, thereby changing its position to meet the limiting requirements of the upper left side of different wheel hubs 100.

[0031] In this embodiment, the lower clamping cylinder 41 is connected to the control valve of the hydraulic system through a connecting pipe. The control valve enables the push rod of the lower clamping cylinder 41 to be pushed and retracted. Its hydraulic system includes structures such as an oil tank and an oil pump, which are conventional structures and will not be described in detail here.

[0032] All electrical components in this embodiment are electrically connected to the control host via electrical connection lines. The operation is controlled by the control host, which is a conventional structure and will not be described in detail here.

[0033] In this embodiment, the counterweight limiting plate 32 is inserted into the right slot 2. Then, the connecting column 31 is raised a certain distance, and the wheel hub 100 is inserted into the connecting column 31. Then, it is lowered so that the lower part of the wheel hub 100 is between the two bending limiting blocks 43 to achieve limiting. Then, the inner end face of the hub of the wheel hub 100 is pressed against the corresponding end face of the connecting column 31 and fixed to the connecting column 31 by bolts. Then, the right end of the transverse support rod 30 is inserted into the insertion hole in the middle of the left end face of the connecting column 31 through the slot 1 and through the central through hole of the hub of the wheel hub 100. The bottom surface of the insertion hole has a threaded through hole. The first set bolt is screwed on, and the top end of the threaded part of the first set bolt is pressed against the bottom surface of the right end of the transverse support rod 30 to connect and fix it. At this time, the left side of the transverse support rod 30 has been installed with the movable limiting sleeve 4 and the counterweight block 3, and balance is achieved.

[0034] Then, by pushing the push rod of the lower clamping cylinder 41, the lower clamping plate 42 is lifted, so that the rim on the right side of the hub 100 is clamped between the bottom surface of the clamping block 56 and the top surface of the lower clamping plate 42, and the rim of the hub 100 is between the right limit bar 57 and the right side wall of the upper limit block 59, thus achieving upper limit.

[0035] As the push rod of the lower clamping cylinder 41 is continuously pushed, the rim on the right side of the hub 100 deforms. At this time, the pressure sensor 54 transmits the sensed value to the control host to obtain the load value, until it breaks, and obtains the maximum load it has detected.

[0036] This embodiment ensures that the position of the wheel hub 100 does not shift or tilt during detection, thus guaranteeing detection accuracy.

[0037] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A tooling for testing the static pressure of a wheel rim, comprising a left support frame (10) and a right support frame (20), characterized in that: Two left vertical frames (11) are fixed on the top surface of the top plate of the left support frame (10), and two right vertical frames (21) are fixed on the top surface of the top plate of the right support frame (20). A slot (1) is formed between the two vertical rods (12) of the two left vertical frames (11), and a right slot (2) is formed between the two vertical plates (22) of the two right vertical frames (21). The left end of the transverse support rod (30) is inserted into the slot (1), and its outer side wall is close to the inner side wall of the slot (1). The right end of the transverse support rod (30) is fixed with a connecting column (31), and the right end of the connecting column (31) is fixed with a counterweight limiting plate (32). The counterweight limiting plate (32) is inserted into the right slot (2), and the front and rear side walls of the counterweight limiting plate (32) are close to the front or rear side wall of the right slot (2). The wheel hub (100) to be tested is inserted into the connecting post (31) and fixed to the connecting post (31) by bolts.

2. The wheel rim hydrostatic testing fixture according to claim 1, characterized in that: The left side of the transverse support rod (30) extends out of the left end of the slot (1) and is fitted with a counterweight (3). Limit sleeves (4) are fitted on the transverse support rods (30) on both sides of the counterweight (3). The limit sleeves (4) are fixedly connected to the transverse support rods (30) by set bolts. The counterweight (3) is located between the two limit sleeves (4).

3. The wheel rim hydrostatic testing fixture according to claim 1, characterized in that: A lower support frame (40) is fixed on the ground between the left support frame (10) and the right support frame (20). A lower pressing cylinder (41) is fixed in the middle of the bottom surface of the top plate of the lower support frame (40). The top end of the push rod of the lower pressing cylinder (41) extends out of the top surface of the top plate of the lower support frame (40) and is fixed with a lower pressing plate (42). A bending limit block (43) is fixed on the left and right sides of the lower pressing plate (42). The left and right ends of the hub (100) are close to the corresponding inner sidewall of the corresponding bending limit block (43).

4. The wheel rim hydrostatic testing fixture according to claim 3, characterized in that: The bottom surface of the lower pressing plate (42) is fixed with a plurality of first vertical guide rods (44), which are inserted into guide sleeves fixed in guide through holes formed in the top plate of the lower support frame (40).

5. The wheel rim hydrostatic testing fixture according to claim 1, characterized in that: Multiple vertical support columns (50) are fixed on the ground outside the left support frame (10) and the right support frame (20). The top plate (51) is fixed on the top surface of all the vertical support columns (50) on the left and right sides. A screw hole is formed in the middle of the top plate (51). A vertical adjusting stud (52) is screwed into the screw hole. The bottom end of the vertical adjusting stud (52) extends out of the bottom surface of the top plate (51) and is movably connected to the upper connecting plate (53). A pressure sensor (54) is fixed on the bottom surface of the upper connecting plate (53). An upper pressure plate (55) is fixed on the bottom surface of the sensing end of the pressure sensor (54). A pressing block (56) is fixed on the right side of the bottom surface of the upper pressure plate (55). The bottom surface of the pressing block (56) faces the right rim (101) of the hub (100).

6. The wheel rim hydrostatic testing fixture according to claim 5, characterized in that: The pressure sensor (54) is located on the top surface of the upper pressure plate (55) directly above the pressure block (56). A right limit strip (57) is fixed on the bottom right side of the pressure block (56). The left side wall of the right limit strip (57) is close to the upper right side wall of the rim of the hub (100).

7. The wheel rim hydrostatic testing fixture according to claim 5, characterized in that: Multiple vertical guide rods (531) are fixed on the top surface of the upper connecting plate (53). The vertical guide rods (531) are inserted into guide sleeves fixed on the inner side wall of the guide through hole formed on the upper top plate (51).

8. The wheel rim hydrostatic testing fixture according to claim 5, characterized in that: A locking nut (58) is screwed onto the vertical adjusting stud (52), and the bottom surface of the locking nut (58) presses against the top surface of the upper top plate (51).

9. The wheel rim hydrostatic testing fixture according to claim 5, characterized in that: An upper limit block (59) is fixed to the left side of the bottom surface of the upper pressure plate (55), and the right side wall of the upper limit block (59) corresponds to the upper part of the left end face of the hub (100).

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