Fixing clamp for vibration test bench

Abstract

The utility model discloses a fixing clamp used for a vibration test bench, comprising a tool main body and a hanger, the tool main body is used for installing a tested piece; the plurality of hangers are arranged on the tool main body after being lined up, and are used for hoisting the tested piece; wherein the lifting appliance comprises a hook, a pressing block and an anti-inclination assembly, the hook and the anti-inclination assembly are both used for being installed on the tool body, and the hook is used for lifting a tested piece; the anti-inclination assembly is located on one side of the hook. The multiple pressing blocks are fixedly arranged on the two sides of the upper portion of the tested piece, the multiple pressing blocks are located under the anti-inclination assembly, and the anti-inclination assembly is used for exerting pressure on the pressing blocks so that the tested piece can be tightly hung on the hook, and the tested piece is prevented from inclining. The utility model aims to solve the problem that a vibration table is out of the capacity range of the vibration table due to poor transmission performance of a vibration clamp in the prior art, so that the vibration table breaks down.

Description

Technical Field

[0001] The utility model relates to the technical field of pod suspension flight vibration test, in particular to a fixing fixture used for a vibration test bench. Background Art

[0002] The pod suspension flight vibration test refers to a vibration test on the pod equipment on a spacecraft or military aircraft, simulating the environmental vibration under the actual suspension flight state to verify the mechanical environmental wear of the pod equipment.

[0003] The pod suspension flight vibration test is specifically divided into: before the test, the pod parts to be separated are parked vertically and fixed with hoists and pulleys; by truly simulating the suspension flight state, the dynamic strength of the pod equipment is effectively assessed to ensure its safety; during the test, parameters such as the vibration speed of the pod are measured to ensure that it meets the technical index requirements; this test helps to improve the reliability and predictability of the pod equipment in the actual suspension flight environment.

[0004] In short, the pod flight vibration test is an important means of mechanical environment reset verification to ensure that the pod equipment on spacecraft and military aircraft can work safely and reliably.

[0005] In the pod suspension vibration test, the main application of the fixture includes: vertically parking the pod parts to be separated and fixing them with the sling. This fixing method can simulate the vibration environment in the actual suspension state.

[0006] In the prior art, large pod equipment has the characteristics of heavy weight, large volume, and long length, and the vibration test conditions are required to be high, which makes the test more difficult. The initial vibration fixture has poor transmission performance. In order to meet the control requirements, during the test, the vibration table eventually exceeded its capacity, resulting in a failure of the vibration table. Summary of the invention

[0007] The utility model provides a fixing fixture for a vibration test bench, aiming to solve the problem that the vibration fixture in the prior art has poor transmission performance, which causes the vibration bench to exceed its capacity range and thus cause the vibration bench to malfunction.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0009] A fixing fixture for a vibration test bench comprises a fixture body and a hanger, wherein the fixture body is used to install a test piece; the hangers are arranged in a row on the fixture body and used to hang the test piece;

[0010] Among them, the sling includes a hook, a pressure block and an anti-tilt assembly, and the hook and the anti-tilt assembly are both used to be installed on the tooling body, and the hook is used to sling the test piece; the anti-tilt assembly is located on one side of the hook; the pressure blocks are in a number and fixed on both sides above the test piece, and several pressure blocks are located directly below the anti-tilt assembly, and the anti-tilt assembly is used to apply pressure on the pressure blocks so that the test piece is tightly hung on the hook and prevent the test piece from tilting.

[0011] Furthermore, the anti-tilt assembly includes an anti-tilt support block and a plurality of screws. The anti-tilt support block is used to be installed on the tooling body. A plurality of threaded holes are provided on both sides of the anti-tilt support block. The number of the threaded holes corresponds to the number and positions of the screws and the pressure block. After the screws are threadedly connected to the threaded holes, they pass through the pressure block and are movably connected to the pressure block.

[0012] Furthermore, a pressing plate is provided at the end of the screw rod, and the pressing plate and the screw rod are connected to form an integrated structure. A pressing groove matching the shape of the pressing plate is provided on the pressing block, and the pressing plate is used to contact the bottom surface of the pressing groove.

[0013] Furthermore, a suspension beam is detachably provided on the test piece, the plurality of pressing blocks are fixedly provided on the suspension beam, and the hook is used to suspend the test piece through the suspension beam.

[0014] Furthermore, a plurality of hanging rings are fixedly provided on the suspension beam, the number and positions of the hanging rings correspond to the hooks, and the suspension beam and the test piece are used to be hung in the hanging rings through the hooks.

[0015] Furthermore, the hook is composed of two parts, namely a mounting part and a hoisting part. The hoisting part is fixedly arranged below the mounting part. The mounting part is used to be arranged on the tooling body, and the hoisting part is used to hoist the hanging ring.

[0016] Furthermore, a plurality of mounting grooves are provided on the tooling body, the number of which corresponds to the number of hangers, a mounting plate is detachably provided in the mounting groove, a partition is provided on the lower end surface of the mounting plate, the hook is located on one side of the partition, the anti-tilt support plate is located on the other side of the hook and is detachably connected to the mounting plate; a U-shaped block is provided on the mounting plate, the U-shaped block is used to fix the mounting part on the partition after being detachably connected to the mounting plate and the partition by a plurality of bolts respectively.

[0017] Furthermore, the tooling body includes a base plate, a U-shaped bracket and a rib body. There are several U-shaped brackets, and the number of the U-shaped brackets corresponds to the number of hangers. The hangers are used to be installed on the U-shaped brackets. The U-shaped brackets are inverted on the base plate and fixedly connected to the base plate. The rib body is arranged between the U-shaped bracket and the base plate, and the rib body is used to perform secondary fixation on the U-shaped bracket.

[0018] Furthermore, a rotation groove is provided above the screw.

[0019] Furthermore, a thin plate is fixedly provided at the bottom of the hanging ring, a plurality of positioning holes are provided at the edge of the thin plate, a plurality of positioning blocks are provided on the suspension beam, the positioning blocks cooperate with the positioning holes, and the thin plate and the suspension beam are connected by bolts.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model mainly comprises a tooling main body and a hoist, and the tooling main body is used for installing a test piece. In actual use, the head of the test piece is first sent into the inner cavity of the tooling main body by using a trolley, and moving carts are placed on both sides of the tooling main body in advance. When the head of the test piece passes through the tooling main body and is located above the moving cart, the trolley lowers the test piece, and the two ends of the test piece are placed on the two moving carts. Then, a hook and an anti-tilt assembly are installed on the tooling main body, and a pressure block is fixedly installed on the test piece. At this time, the test piece is lifted by the aircraft again, and the hook is used to lift the test piece, and then the anti-tilt assembly is used to apply pressure to the pressure block, so that the test piece is tightly hung on the hook. The function of the anti-tilt assembly is mainly to prevent the test piece from tilting. When the tooling main body is subjected to a vibration test, it can be ensured that the test piece can stably cooperate with the hook without tilting, which effectively ensures the safety of the vibration table during operation and avoids failure of the vibration table. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of the utility model.

[0024] Figure 2 It is a side view of the utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model.

[0026] In the figure, 101-tool body, 102-hanging fixture, 103-test piece, 104-hook, 105-pressing block, 106-anti-tilt assembly, 107-anti-tilt support block, 108-screw, 109-threaded hole, 110-pressing groove, 111-suspension beam, 112-hanging ring, 113-installing part, 114-lifting part, 115-installing groove, 116-installing plate, 117-partition, 118-U-shaped block, 119-bottom plate, 120-U-shaped bracket, 121-reinforcement body, 122-rotation groove, 123-thin plate, 124-positioning hole, 125-positioning block. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the embodiments, which are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the protection scope of the present invention.

[0028] See also Figure 1-3 As shown, this embodiment discloses a fixing fixture for a vibration test bench, including a tooling body 101 and a hanger 102, wherein the tooling body 101 is used to install a test piece 103; there are a plurality of hangers 102, which are arranged in a row on the tooling body 101 and are used to hang the test piece 103;

[0029] The sling 102 includes a hook 104, a pressure block 105 and an anti-tilt assembly 106. The hook 104 and the anti-tilt assembly 106 are both used to be installed on the tooling body 101. The hook 104 is used to sling the test piece 103. The anti-tilt assembly 106 is located on one side of the hook 104. There are a number of pressure blocks 105, which are fixed on both sides above the test piece 103. A number of pressure blocks 105 are located directly below the anti-tilt assembly 106. The anti-tilt assembly 106 is used to apply pressure on the pressure blocks 105 so that the test piece 103 is tightly hung on the hook 104.

[0030] As an optional implementation, in this embodiment, the test piece 103 is a pod. In actual use, the head of the pod must first be sent into the inner cavity of the tooling body 101 by using a trolley, and mobile carts are placed on both sides of the tooling body 101 in advance. When the head of the pod passes through the tooling body 101 and is located above the mobile cart, the trolley lowers the pod, and the two ends of the pod are placed on the two mobile carts. Then, the hook 104 and the anti-tilt assembly 106 are installed on the tooling body 101, and the pressure block 105 is fixedly installed on the pod. At this time, the pod is lifted by the aircraft again, and the hook 104 is used to lift the pod, and then the anti-tilt assembly 106 is used to apply pressure to the pressure block 105, so that the pod is tightly hung on the hook 104. The function of the anti-tilt assembly 106 is mainly to prevent the pod from tilting; when the tooling body 101 is subjected to a vibration test, it can ensure that the pod can stably cooperate with the hook 104 without tilting, which effectively ensures the safety of the vibration table during operation and avoids failure of the vibration table.

[0031] In some embodiments, the anti-tilt assembly 106 includes an anti-tilt support block 107 and a plurality of screws 108. The anti-tilt support block 107 is used to be installed on the tooling body 101. A plurality of threaded holes 109 are provided on both sides of the anti-tilt support block 107. The number of threaded holes 109 corresponds to the number and positions of the screws 108 and the pressure block 105. After the screws 108 are threadedly connected to the threaded holes 109, they pass through the pressure block 105 and are movably connected to the pressure block 105.

[0032] In actual use, after the pod is lifted by several hooks 104, the staff rotates the screws 108 at both ends of several anti-tilt support blocks 107. The screws 108 are threadedly matched with the threaded holes 109 so that the screws 108 squeeze the pressure blocks 105. When the pod is subjected to the pressure generated by the squeezing of the screws 108, the pod tends to move downward. When the hooks 104 hoist the pod, the pod is also subjected to the pulling force of the hooks 104. As the screws 108 slowly rotate, the pulling force and the pressure on the pod reach a balance and then the screws 108 stop rotating. At this time, the pod is squeezed by the screws 108 at both ends of the anti-tilt support blocks 107 and then fixed by the hooks 104. The advantage of this arrangement is that it can prevent the pod from tilting and shaking.

[0033] In some embodiments, a pressing plate is provided at the end of the screw rod 108 , and the pressing plate and the screw rod 108 are connected to form an integrated structure. A pressing groove 110 matching the shape of the pressing plate is provided on the pressing block 105 , and the pressing plate is used to contact the bottom surface of the pressing groove 110 .

[0034] In actual use, the diameter of the pressure plate is larger than the diameter of the screw 108. The advantage of such a setting is that the area of ​​the screw 108 can be increased, so that the force-bearing area of ​​the pod is larger.

[0035] In some embodiments, a suspension beam 111 is detachably provided on the test piece 103 , the plurality of pressing blocks 105 are fixed on the suspension beam 111 , and the hook 104 is used to suspend the test piece 103 through the suspension beam 111 .

[0036] In actual use, the suspension beam 111 is detachably connected to the pod via a plurality of bolts. The main function of providing the suspension beam 111 is to install the pressing block 105 .

[0037] In some embodiments, a plurality of hanging rings 112 are fixedly provided on the suspension beam 111 , the number and positions of the hanging rings 112 correspond to the hooks 104 , and the suspension beam 111 and the test piece 103 are used to be suspended in the hanging rings 112 through the hooks 104 .

[0038] In actual use, the hook 104 lifts the pod via the hanging ring 112 .

[0039] In some embodiments, the hook 104 is composed of two parts, namely a mounting portion 113 and a hoisting portion 114 . The hoisting portion 114 is fixedly arranged below the mounting portion 113 . The mounting portion 113 is used to be arranged on the tooling body 101 , and the hoisting portion 114 is used to hoist the hanging ring 112 .

[0040] In actual use, the main function of the installation part 113 is to perform installation, and the main function of the hoisting part 114 is to cooperate with the hanging ring 112 to hoist the pod.

[0041] In some embodiments, a plurality of mounting grooves 115 are provided on the tooling body 101, and the number of the mounting grooves 115 corresponds to the number of the hangers 102. A mounting plate 116 is detachably provided in the mounting groove 115, and a partition 117 is provided on the lower end surface of the mounting plate 116. The hook 104 is located on one side of the partition 117, and the anti-tilt support plate is located on the other side of the hook 104 and is detachably connected to the mounting plate 116. A U-shaped block 118 is provided on the mounting plate 116, and the U-shaped block 118 is used to fix the mounting part 113 on the partition 117 after being detachably connected to the mounting plate 116 and the partition 117 respectively by a plurality of bolts.

[0042] In actual use, the front end face and the lower end face of the U-shaped block 118 are provided with through holes, the front end face of the mounting portion 113 is also provided with a through hole, and threaded holes 109 are provided at positions corresponding to the through holes on the partition 117 and the mounting plate 116. A number of long bolts are respectively passed through the through holes on the front end of the U-shaped block 118 and the mounting portion 113 and are threadedly connected to the partition 117, thereby fixing the lateral position of the mounting portion 113. When a number of long bolts are respectively passed through the through holes at the bottom of the U-shaped block 118 and the bottom of the mounting portion 113 and are threadedly connected to the mounting plate 116, the longitudinal position of the mounting portion 113 can be fixed, thereby achieving the purpose of clamping the mounting portion 113 using the U-shaped block 118. The main purpose of using the U-shaped block 118 is to make way for the lifting portion 114.

[0043] In some embodiments, the tooling body 101 includes a base plate 119, a U-shaped bracket 120 and a rib 121. There are several U-shaped brackets 120, and the number of the U-shaped brackets 120 corresponds to the number of hangers 102. The hangers 102 are used to be installed on the U-shaped bracket 120. The U-shaped bracket 120 is inverted on the base plate 119 and fixedly connected to the base plate 119. The rib 121 is arranged between the U-shaped bracket 120 and the base plate 119, and the rib 121 is used to perform secondary fixation on the U-shaped bracket 120.

[0044] In actual use, the bottom plate 119 , a plurality of U-shaped brackets 120 and the ribs 121 are connected together to form an integrated structure, and a hanger 102 is correspondingly arranged on each U-shaped bracket 120 .

[0045] In some embodiments, a rotation groove 122 is disposed above the screw rod 108 .

[0046] In actual use, the purpose of providing the rotation groove 122 is to facilitate the staff to rotate the screw rod 108 after clamping the screw rod 108 with a tool.

[0047] In some embodiments, a thin plate 123 is fixedly provided at the bottom of the hanging ring 112, a plurality of positioning holes 124 are provided at the edge of the thin plate 123, a plurality of positioning blocks 125 are provided on the suspension beam 111, the positioning blocks 125 cooperate with the positioning holes 124, and the thin plate 123 is connected to the suspension beam 111 by bolts.

[0048] During actual use, when installing the hanging ring 112, the staff first needs to locate the position of the hanging ring 112. In order to accurately locate the hanging ring 112, multiple positioning holes 124 and positioning blocks 125 are set so that the hanging ring 112 can be quickly located and installed through the thin plate 123.

[0049] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0051] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for a vibration test bench, characterized in that: include: A tool body (101), wherein the tool body (101) is used to install a test piece (103); A sling (102), wherein the sling (102) is in a plurality and arranged in a row on the tooling body (101), and is used to sling the test piece (103); The sling (102) comprises a hook (104), a pressure block (105) and an anti-tilt assembly (106), wherein the hook (104) and the anti-tilt assembly (106) are both used for being installed on the tooling body (101), and the hook (104) is used for slinging the test piece (103); the anti-tilt assembly (106) is located on one side of the hook (104); the pressure blocks (105) are in a plurality and are fixedly arranged on both sides above the test piece (103), and a plurality of pressure blocks (105) are located below the anti-tilt assembly (106); the anti-tilt assembly (106) is used for applying pressure on the pressure blocks (105) so that the test piece (103) is hung on the hook (104) and prevents the test piece (103) from tilting.

2. A fixing fixture for a vibration test bench according to claim 1, characterized in that: The anti-tilt assembly (106) comprises an anti-tilt support block (107) and a plurality of screw rods (108). The anti-tilt support block (107) is used to be installed on the tooling body (101). A plurality of threaded holes (109) are provided on both sides of the anti-tilt support block (107). The number of the threaded holes (109) corresponds to the number and position of the screw rods (108) and the pressing block (105). The screw rods (108) are threadedly connected to the threaded holes (109) and then pass through the pressing block (105) and are movably connected to the pressing block (105).

3. A fixing fixture for a vibration test bench according to claim 2, characterized in that: A pressing plate is provided at the end of the screw rod (108), and the pressing plate and the screw rod (108) are connected to form an integrated structure. A pressing groove (110) matching the shape of the pressing plate is provided on the pressing block (105), and the pressing plate is used to contact the bottom surface of the pressing groove (110).

4. A fixing fixture for a vibration test bench according to claim 1, characterized in that: A suspension beam (111) is detachably provided on the test piece (103), the plurality of pressing blocks (105) are fixedly provided on the suspension beam (111), and the hook (104) is used to suspend the test piece (103) through the suspension beam (111).

5. A fixing fixture for a vibration test bench according to claim 4, characterized in that: A plurality of hanging rings (112) are fixedly provided on the suspension beam (111), the number and positions of the hanging rings (112) correspond to the hooks (104), and the suspension beam (111) and the test piece (103) are used to be hung in the hanging rings (112) through the hooks (104).

6. A fixing fixture for a vibration test bench according to claim 5, characterized in that: The hook (104) is composed of two parts, namely a mounting part (113) and a hoisting part (114). The hoisting part (114) is fixedly arranged below the mounting part (113). The mounting part (113) is used to be arranged on the tool body (101). The hoisting part (114) is used to hoist the hanging ring (112).

7. A fixing fixture for a vibration test bench according to claim 6, characterized in that: A plurality of mounting grooves (115) are provided on the tooling body (101), the number of the mounting grooves (115) corresponds to the number of the slings (102), a mounting plate (116) is detachably provided in the mounting groove (115), a partition (117) is provided on the lower end surface of the mounting plate (116), a hook (104) is located on one side of the partition (117), an anti-tilt support plate is located on the other side of the hook (104) and is detachably connected to the mounting plate (116); a U-shaped block (118) is provided on the mounting plate (116), the U-shaped block (118) is used to fix the mounting portion (113) on the partition (117) after being detachably connected to the mounting plate (116) and the partition (117) respectively by a plurality of bolts.

8. The fixing fixture for a vibration test bench according to claim 1, characterized in that: The tooling body (101) comprises a base plate (119), a U-shaped bracket (120) and a rib (121). There are a plurality of U-shaped brackets (120), and the number of the plurality of U-shaped brackets (120) corresponds to the number of the hangers (102). The hangers (102) are used to be installed on the U-shaped brackets (120). The U-shaped brackets (120) are inverted on the base plate (119) and fixedly connected to the base plate (119). The rib (121) is arranged between the U-shaped brackets (120) and the base plate (119), and the rib (121) is used to perform secondary fixation on the U-shaped brackets (120).

9. A fixing fixture for a vibration test bench according to claim 2, characterized in that: A rotation groove (122) is provided above the screw rod (108).

10. A fixing fixture for a vibration test bench according to claim 5, characterized in that: A thin plate (123) is fixedly provided at the bottom of the hanging ring (112), a plurality of positioning holes (124) are provided at the edge of the thin plate (123), a plurality of positioning blocks (125) are provided on the suspension beam (111), the positioning blocks (125) and the positioning holes (124) cooperate with each other, and the thin plate (123) and the suspension beam (111) are connected by bolts.

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