Lock hook air tightness test equipment

Abstract

The utility model discloses lock hook air tightness test equipment, which comprises a test operation table and a test assembly, the test assembly comprises a support frame and a driving cylinder, the extension end part of a piston rod of the driving cylinder is provided with a lifting sliding seat, the lifting sliding seat is provided with a test upper die, and the test upper die is provided with an upper die cavity and an air hole; the upper surface of the test operation table is provided with a test lower die assembly, the test lower die assembly comprises a sealing rubber ring and a test lower die plate, the test lower die plate is provided with a short arm insertion hole and a long arm insertion hole, and sealing rubber sleeves are embedded in the short arm insertion hole and the long arm insertion hole respectively; a movable lock plate is installed in a lower die movable cavity of the test lower die plate, a short arm through hole and a long arm through hole are formed in the movable lock plate, a compression spring is installed on one side of the movable lock plate, a transverse pushing air cylinder is installed on the side, right opposite to the compression spring, of the movable lock plate, and the compression spring elastically abuts against the movable lock plate towards the transverse pushing air cylinder. The locking hook air tightness testing device has the advantages of novel structural design and accurate locking hook clamping and positioning, and can be effectively suitable for locking hook air tightness testing.

Description

TECHNICAL FIELD

[0001] The utility model relates to airtightness test equipment technical field especially relates to a lock hook airtightness test equipment. BACKGROUND

[0002] The utility model discloses airtightness detector frock of a kind of, and its essence discloses a kind of airtightness test equipment;Specifically, the airtightness detector frock discloses the following technical scheme: a kind of airtightness detector frock, it is installed on airtightness detector operation table, and including cylinder, support column, protective cover, bottom plate, guide rod, guide plate, top plate, installation template, upper die, sealing ring, lower die, support column bottom is fixed to bottom plate, top plate is fixed to support column top, cylinder is set to top plate, installation template is connected with the screw rod of cylinder, upper die is installed in installation template bottom, lower die is installed on bottom plate upper surface, the two faces of lower die and upper die are opened cavity, the cavity is used to place the product to be detected, the surface of lower die and upper die contact is grooved, sealing ring is arranged in the groove;The side wall of lower die is opened air hole, and the air hole is used for airtightness detector to detect the airtightness in cavity;Protective cover is fixed in support column, to enclose three side surfaces between bottom plate and top plate, one side surface is open for putting and taking out the product to be detected.

[0003] In the process of carrying out airtightness detection to product, the product to be detected is placed in lower die, both hands press the start button on airtightness detector control box simultaneously, cylinder is pressed down, and automatic airtightness detector works, at this moment, upper die and lower die are closed and the sealing effect is guaranteed between the two through sealing ring, and airtightness detector detects whether the airtightness in mold meets the requirement through the air hole on lower die.

[0004] It should be pointed out that, for the lock hook of padlock, as shown in Figure 1 The lock hook product 10 is curved and includes mutually parallel long parallel branch 102 and short parallel branch 101, and the long parallel branch 102 and the short parallel branch 101 are respectively provided with lock slot 103, and the lock slot 103 of the long parallel branch 102 and the lock slot 103 of the short parallel branch 101 are arranged transversely in alignment. For the above-mentioned airtightness detector frock, due to the particularity of the lock hook structure, the airtightness detector frock is not suitable for lock hook airtightness test, so it is necessary to develop and design a lock hook airtightness test equipment for the lock hook product. Utility model content

[0005] The utility model aims at the deficiency of prior art and provides a kind of lock hook airtightness test equipment, which is novel in structure design, accurate in lock hook clamping and positioning, and can be effectively applied to lock hook airtightness test.

[0006] To achieve the above object, the utility model discloses the following technical scheme to realize.

[0007] A lock hook air tightness test equipment, including test operation platform, test assembly is installed on test operation platform, and test assembly includes support frame, drive cylinder is installed on the upper end of support frame, and the outer extension end of piston rod of drive cylinder is installed with lifting slide seat, and lifting slide seat is installed with test upper mould, and the inside of test upper mould is provided with the upper mould cavity that opens downward, and the lateral wall of test upper mould is provided with the air hole that opens outward and is communicated with upper mould cavity.

[0008] The upper surface of test operation platform is installed with test lower mould assembly below test upper mould, and test lower mould assembly includes sealing rubber ring.

[0009] Test lower mould assembly still includes test lower mould plate, and test lower mould plate is provided with the short arm insertion hole that is inserted from up to down for the short parallel support arm of lock hook, and the long arm insertion hole that is inserted from up to down for the long parallel support arm of lock hook, and short arm insertion hole and long arm insertion hole are vertically through test lower mould plate respectively, and sealing rubber sleeve is respectively embedded in short arm insertion hole and long arm insertion hole, and sealing rubber ring is installed on the upper surface of test lower mould plate, and sealing rubber ring is surrounded in the upper end opening of short arm insertion hole and long arm insertion hole.

[0010] The lower end side of sealing rubber sleeve is formed with lower mould movable cavity that is communicated with short arm insertion hole and long arm insertion hole on test lower mould plate, and movable lock plate is horizontally slidably installed in lower mould movable cavity, and movable lock plate is provided with the short arm through hole that corresponds with the short parallel support arm of lock hook, and the long arm through hole that corresponds with the long parallel support arm of lock hook, and one side of movable lock plate is installed with compression spring, and the opposite side of compression spring is installed with horizontal push air cylinder on movable lock plate, and compression spring and horizontal push air cylinder are installed on test lower mould plate respectively, and the outer extension end of piston rod of horizontal push air cylinder extends into lower mould movable cavity, and compression spring elastically abuts against movable lock plate to the side of horizontal push air cylinder.

[0011] Wherein, the test lower mould plate includes lower mould top plate, lower mould middle plate and lower mould bottom plate that are sequentially screwed from top to bottom, and each sealing rubber sleeve is clamped and installed between lower mould top plate and lower mould middle plate.

[0012] Lower mould movable cavity is located between lower mould middle plate and lower mould bottom plate, and spring positioning hole that is communicated with lower mould movable cavity is formed between lower mould middle plate and lower mould bottom plate, and compression spring is embedded in spring positioning hole.

[0013] Wherein, the lateral wall of lower mould middle plate is screwed with air cylinder mounting seat, and the cylinder body of horizontal push air cylinder is screwed and fastened to air cylinder mounting seat.

[0014] Lower mould middle plate is provided with piston rod hole that is communicated with lower mould movable cavity and is passed through the piston rod of horizontal push air cylinder.

[0015] The lower mold test assembly further comprises a lower mold base plate below the test lower mold plate, the lower mold base plate is arranged on the upper surface of the test operation table, and a lower mold cushion block is arranged between the test lower mold plate and the lower mold base plate, the upper end and the lower end of the lower mold cushion block are respectively screwed with the test lower mold plate and the lower mold base plate on the corresponding side;

[0016] The upper surface of the lower mold base plate is provided with a proximity sensor.

[0017] The support frame comprises a fixed top plate, the cylinder body of the driving air cylinder is screwed to the upper surface of the fixed top plate, and the piston rod of the driving air cylinder extends to the lower end side of the fixed top plate through the fixed top plate;

[0018] A plurality of guide columns arranged in the vertical direction are arranged between the fixed top plate and the test operation table, the upper ends of the guide columns are connected with the fixed top plate respectively, the lower ends of the guide columns are connected with the test operation table respectively, the lifting slide is provided with a guide sleeve corresponding to each guide column, and each guide column vertically penetrates the center hole of the corresponding guide sleeve.

[0019] The upper end of the lifting slide is screwed with an air cylinder joint corresponding to the driving air cylinder, and the outer extension end of the piston rod of the driving air cylinder is connected with the air cylinder joint.

[0020] Compared with the prior art, the utility model has the following beneficial effects, specifically: in the process of clamping and positioning the lock hook product on the test lower mold plate, the utility model realizes the locking and positioning of the lock hook product by cooperating the compression spring with the movable lock plate, so that the lock hook product is accurately positioned and clamped on the test position; after the test is completed, the utility model drives the movable lock plate to move by the horizontal push air cylinder, so as to realize the unlocking of the locking and positioning of the movable lock plate. Therefore, the lock hook air tightness test equipment has the advantages of novel structure design and accurate lock hook clamping and positioning, and can be effectively applied to lock hook air tightness test. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further described below by using the drawings, but the embodiments in the drawings do not constitute any limitation on the utility model.

[0022] Figure 1 It is a structure diagram of the lock hook.

[0023] Figure 2 It is a structure diagram of the utility model.

[0024] Figure 3 It is a structure diagram of another view of the utility model.

[0025] Figure 4 It is a cross-sectional view of the utility model.

[0026] Figure 5for Figure 4 A magnified view of a portion of the image.

[0027] exist Figures 1 to 5 This includes:

[0028] 1-Testing platform; 2-Testing components; 3-Support frame; 31-Fixed top plate; 32-Guide pillar; 4-Drive cylinder; 5-Lifting slide; 51-Guide sleeve; 52-Cylinder connector; 6-Testing upper mold; 61-Upper mold cavity; 62-Air hole; 7-Testing lower mold assembly; 71-Sealing ring; 72-Testing lower template; 721-Short arm insertion hole; 722-Long arm insertion hole; 723-Lower mold movable cavity; 724-Lower mold top plate; 725-Lower... 726-Mold base plate; 727-Spring positioning hole; 728-Cylinder mounting seat; 729-Piston rod hole; 73-Sealing sleeve; 74-Modible locking plate; 741-Short arm through hole; 742-Long arm through hole; 75-Compression spring; 76-Horizontal push cylinder; 77-Lower mold base plate; 78-Lower mold pad; 79-Proximity sensor; 10-Locking hook product; 101-Short parallel support arm; 102-Long parallel support arm; 103-Locking groove. Detailed Implementation

[0029] The present invention will now be described in conjunction with specific embodiments.

[0030] Example 1, as Figures 2 to 5 As shown, a lock hook airtightness testing device includes a test operating table 1 and a test component 2 mounted on the test operating table 1. The test component 2 includes a support frame 3 and a drive cylinder 4 mounted on the upper end of the support frame 3. The piston rod of the drive cylinder 4 is provided with a lifting slide 5. The lifting slide 5 is provided with a test upper mold 6. The test upper mold 6 has a downward-opening upper mold cavity 61 inside. The side wall of the test upper mold 6 has an outward-opening air hole 62 that communicates with the upper mold cavity 61.

[0031] Among them, such as Figure 4 and Figure 5 As shown, a test lower mold assembly 7 is installed on the upper surface of the test operation table 1 directly below the test upper mold 6. The test lower mold assembly 7 includes a sealing ring 71.

[0032] Furthermore, such as Figures 2 to 5As shown, the test lower die assembly 7 further comprises a test lower die plate 72, the test lower die plate 72 is provided with a short arm insertion hole 721 for the short parallel branch arm 101 of the lock hook to be inserted from top to bottom, and a long arm insertion hole 722 for the long parallel branch arm 102 of the lock hook to be inserted from top to bottom, the short arm insertion hole 721 and the long arm insertion hole 722 vertically penetrate the test lower die plate 72 respectively, and the short arm insertion hole 721 and the long arm insertion hole 722 are respectively embedded with sealing rubber sleeves 73; the sealing rubber ring 71 is installed on the upper surface of the test lower die plate 72, and the sealing rubber ring 71 surrounds the upper end openings of the short arm insertion hole 721 and the long arm insertion hole 722.

[0033] Further, as shown in Figure 4 and Figure 5 As shown, the test lower die plate 72 is formed with lower die movable cavities 723 on the lower end side of the sealing rubber sleeves 73, which respectively communicate with the short arm insertion hole 721 and the long arm insertion hole 722, the movable lock plate 74 is horizontally slidingly installed in the lower die movable cavities 723, the movable lock plate 74 is provided with a short arm through hole 741 corresponding to the short parallel branch arm 101 of the lock hook, and a long arm through hole 742 corresponding to the long parallel branch arm 102 of the lock hook; one side of the movable lock plate 74 is provided with a compression spring 75, and the opposite side of the movable lock plate 74 is provided with a horizontal push air cylinder 76, the compression spring 75 and the horizontal push air cylinder 76 are respectively installed on the test lower die plate 72, the outer extension end of the piston rod of the horizontal push air cylinder 76 extends into the lower die movable cavities 723, and the compression spring 75 elastically abuts against the movable lock plate 74 towards the horizontal push air cylinder 76.

[0034] It should be explained that for the test operation table 1 of the present embodiment, a controller, which can be a PLC controller, and a pressure sensor for testing the air pressure of the test upper die cavity during testing, can be directly installed on the test upper die 6. During work, the controller controls the driving air cylinder 4 and the horizontal push air cylinder 76 to act respectively.

[0035] In the process of testing the air tightness of the lock hook by using the lock hook air tightness test equipment of the present embodiment, the steps include:

[0036] Step a, the controller controls the driving air cylinder 4 to act, and the driving air cylinder 4 drives the lifting slide 5 to move upwards to the initial position;

[0037] Step b, the staff inserts the short parallel arm 101 of the lock hook product 10 into the short arm insertion hole 721 of the test lower mold plate 72 and inserts the long parallel arm 102 of the lock hook product 10 into the long arm insertion hole 722 of the test lower mold plate 72, in the process, the short parallel arm 101 of the lock hook product 10 passes through the short arm through hole 741 of the movable lock plate 74 from top to bottom, and the long parallel arm 102 of the lock hook product 10 passes through the long arm through hole 742 of the movable lock plate 74 from top to bottom; when the lock slot 103 of the lock hook product 10 is not lowered to the position of the movable lock plate 74, the lock hook product 10 will press against the movable lock plate 74 towards the compression spring 75 and make the compression spring 75 compressed; when the lock slot 103 of the lock hook product 10 is lowered to the position of the movable lock plate 74, the reset elastic force of the compression spring 75 pushes against the movable lock plate 74 and makes the movable lock plate 74 inserted into the lock slot 103 of the lock hook product 10, at this time, the edge part of the short arm through hole 741 of the movable lock plate 74 is inserted into the lock slot 103 of the short parallel arm 101 of the lock hook product 10, the edge part of the long arm through hole 742 of the movable lock plate 74 is inserted into the lock slot 103 of the long parallel arm 102 of the lock hook product 10, and the lock hook product 10 is locked and positioned by the movable lock plate 74;

[0038] Step c, after the lock hook product 10 is locked and positioned by the piston lock plate, the controller controls the driving cylinder 4 to act, the driving cylinder 4 drives the lifting slide 5 to move downward and makes the test upper mold 6 and the test lower mold plate 72 closed, at this time, the sealing rubber ring 71 is clamped between the test upper mold 6 and the test lower mold plate 72 to realize the sealing between the test upper mold 6 and the test lower mold plate 72; it needs to be explained that the sealing rubber sleeve 73 located in the short arm insertion hole 721 and the long arm insertion hole 722 sheaths the short parallel arm 101 and the long parallel arm 102 of the lock hook product 10 to ensure the sealing of the inside of the upper mold cavity 61;

[0039] Step d, start the vacuumizing device or the inflating device to perform the vacuumizing or inflating operation on the upper mold cavity 61 through the air hole 62 of the test upper mold 6; when the air pressure value in the upper mold cavity 61 reaches the set value, the vacuumizing action or the inflating action stops, at this time, the pressure sensor collects the air pressure information of the upper mold cavity 61 in real time and feeds back the air pressure information to the controller in real time, the controller processes and analyzes the fed back air pressure information to judge the air pressure change in the upper mold cavity 61 and further judge the air tightness quality of the lock hook product 10;

[0040] Step e, after the air tightness test is completed, the controller controls the driving cylinder 4 to act and makes the driving cylinder 4 drive the lifting slide 5 to move up and reset, the controller controls the horizontal push cylinder 76 to act and makes the horizontal push cylinder 76 push the movable lock plate 74 to the compression spring 75 side, so that the movable lock plate 74 retreats from the lock groove 103 of the lock hook product 10, at this time the locking and limiting effect of the movable lock plate 74 on the lock hook product 10 is released, and the worker can pull out the lock hook product 10 from the test lower mold plate 72 after the test is completed.

[0041] It should be emphasized that for the lock hook air tightness test equipment of the embodiment one, in the process of clamping and positioning the lock hook product 10 on the test lower mold plate 72, the embodiment one realizes the locking and limiting of the lock hook product 10 by cooperating the compression spring 75 with the movable lock plate 74, so that the lock hook product 10 is accurately positioned and clamped at the test position; after the test is completed, the embodiment one drives the movable lock plate 74 to move by the horizontal push cylinder 76, so as to realize the unlocking of the locking and limiting of the movable lock plate 74.

[0042] It can be known from the above that the lock hook air tightness test equipment of the embodiment one has the advantages of novel structure design and accurate lock hook clamping and positioning, and can be effectively applied to lock hook air tightness test.

[0043] Embodiment two, as shown in Figure 4 and Figure 5 The difference between the embodiment two and the embodiment one is that the test lower mold plate 72 includes a lower mold top plate 724, a lower mold middle plate 725 and a lower mold bottom plate 726 which are sequentially screwed from top to bottom, and each sealing rubber sleeve 73 is clamped and installed between the lower mold top plate 724 and the lower mold middle plate 725.

[0044] Among them, the lower mold movable cavity 723 is located between the lower mold middle plate 725 and the lower mold bottom plate 726, and the spring positioning hole 727 which communicates with the lower mold movable cavity 723 is formed between the lower mold middle plate 725 and the lower mold bottom plate 726, and the compression spring 75 is embedded in the spring positioning hole 727.

[0045] The lock hook air tightness test equipment of the embodiment two installs and positions the compression spring 75 through the spring positioning hole 727, so as to improve the accuracy of the position of the compression spring 75 during use, and further improve the stability and reliability of use.

[0046] Embodiment three, as shown in Figure 4 and Figure 5 The difference between the embodiment three and the embodiment two is that the side wall of the lower mold middle plate 725 is screwed with a cylinder mounting seat 728, and the cylinder body of the horizontal push cylinder 76 is screwed and fastened to the cylinder mounting seat 728.

[0047] The lower mold middle plate 725 is provided with a piston rod hole 729 for the piston rod of the horizontal push air cylinder 76 to pass through and communicate with the lower mold movable cavity 723.

[0048] The piston rod hole 729 provided in the lower mold middle plate 725 can guide the piston rod of the horizontal push air cylinder 76 to ensure the stability and reliability of the piston rod pushing action of the horizontal push air cylinder 76.

[0049] Embodiment four, as shown in the drawings, the difference between embodiment four and embodiment one is that the lower mold test assembly 2 further comprises a lower mold base plate 77 located below the test lower mold plate 72, the lower mold base plate 77 is installed on the upper surface of the test operation table 1, the lower mold base plate 77 and the test lower mold plate 72 are installed with a lower mold cushion block 78, the upper end and the lower end of the lower mold cushion block 78 are respectively screwed with the corresponding side of the test lower mold plate 72 and the lower mold base plate 77. Figures 2 to 4

[0050] The upper surface of the lower mold base plate 77 is installed with a proximity sensor 79.

[0051] For the proximity sensor 79 of this embodiment four, the proximity sensor 79 is electrically connected with the controller of the test operation table 1; when the lock hook product 10 is inserted in place, the movable lock plate 74 locks and limits the lock hook product 10, at this time the proximity sensor 79 senses that the long parallel arm 102 of the lock hook product 10 is inserted in place, and the proximity sensor 79 feeds back the signal to the controller, and the controller controls the driving cylinder 4 to act according to the above-mentioned lock hook product 10 insertion in place signal.

[0052] Embodiment five, as shown in the drawings, the difference between embodiment five and embodiment one is that the support frame 3 comprises a fixed top plate 31, the cylinder body of the driving cylinder 4 is screwed to the upper surface of the fixed top plate 31, and the piston rod of the driving cylinder 4 passes through the fixed top plate 31 and extends to the lower end side of the fixed top plate 31. Figures 2 to 4 The fixed top plate 31 and the test operation table 1 are installed with a plurality of vertical guide columns 32, the upper ends of the guide columns 32 are connected with the fixed top plate 31 respectively, and the lower ends of the guide columns 32 are connected with the test operation table 1 respectively; the lifting slide 5 is provided with a guide sleeve 51 corresponding to each guide column 32, and each guide column 32 vertically passes through the center hole of the corresponding guide sleeve 51.

[0053] Embodiment six, as shown in the drawings, the difference between embodiment six and embodiment one is that the upper end of the lifting slide 5 is screwed with a cylinder joint 52 corresponding to the driving cylinder 4, and the outer extension end of the piston rod of the driving cylinder 4 is connected with the cylinder joint 52.

[0054] Figures 2 to 4

[0055] ​​​The above merely describes preferred embodiments of the present application, and for those skilled in the art, according to the idea of the present application, changes can be made in the specific implementation manner and application range, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A lock hook airtightness testing device, comprising a test operating table (1) and a test component (2) mounted on the test operating table (1). The test component (2) includes a support frame (3) and a drive cylinder (4) mounted on the upper end of the support frame (3). The piston rod of the drive cylinder (4) is provided with a lifting slide (5). The lifting slide (5) is provided with a test upper mold (6). The test upper mold (6) has a downward-opening upper mold cavity (61) inside. The side wall of the test upper mold (6) has an outward-opening air hole (62) communicating with the upper mold cavity (61). The upper surface of the test operation table (1) is equipped with a test lower mold assembly (7) directly below the test upper mold (6), and the test lower mold assembly (7) includes a sealing ring (71). characterized in that The test lower mold assembly (7) also includes a test lower template (72), which has a short arm insertion hole (721) for the short parallel support arm (101) of the locking hook to be inserted from top to bottom, and a long arm insertion hole (722) for the long parallel support arm (102) of the locking hook to be inserted from top to bottom. The short arm insertion hole (721) and the long arm insertion hole (722) penetrate the test lower template (72) vertically, and a sealing sleeve (73) is embedded in the short arm insertion hole (721) and the long arm insertion hole (722). A sealing ring (71) is installed on the upper surface of the test lower template (72), and the sealing ring (71) surrounds the upper opening of the short arm insertion hole (721) and the long arm insertion hole (722). The test template (72) has a lower mold movable cavity (723) formed on the lower end side of the sealing sleeve (73), which communicates with the short arm insertion hole (721) and the long arm insertion hole (722) respectively. A movable locking plate (74) is horizontally slidably installed in the lower mold movable cavity (723). The movable locking plate (74) has a short arm through hole (741) corresponding to the short parallel support arm (101) of the locking hook and a long arm through hole (74) corresponding to the long parallel support arm (102) of the locking hook. 2) A compression spring (75) is installed on one side of the movable locking plate (74). A horizontal push cylinder (76) is installed on the side of the movable locking plate (74) opposite to the compression spring (75). The compression spring (75) and the horizontal push cylinder (76) are respectively installed on the test lower template (72). The piston rod extension of the horizontal push cylinder (76) extends into the movable cavity (723) of the lower template. The compression spring (75) elastically pushes against the movable locking plate (74) on the side of the horizontal push cylinder (76).

2. A test apparatus as claimed in claim 1, wherein: The test template (72) includes a lower mold top plate (724), a lower mold middle plate (725) and a lower mold bottom plate (726) that are screwed together from top to bottom. Each of the sealing sleeves (73) is respectively fastened between the lower mold top plate (724) and the lower mold middle plate (725). The lower mold movable cavity (723) is located between the lower mold middle plate (725) and the lower mold bottom plate (726), and a spring positioning hole (727) communicating with the lower mold movable cavity (723) is formed between the lower mold middle plate (725) and the lower mold bottom plate (726), and the compression spring (75) is embedded in the spring positioning hole (727).

3. A lock hook air tightness testing apparatus according to claim 2, wherein: The side wall of the lower mold middle plate (725) is screwed with a cylinder mounting base (728), and the cylinder body of the transverse push cylinder (76) is screwed and fastened to the cylinder mounting base (728); The lower mold middle plate (725) is provided with a piston rod hole (729) through which the piston rod of the transverse push cylinder (76) passes and which is communicated with the movable cavity (723) of the lower mold.

4. A lock hook air tightness testing apparatus according to claim 1, wherein: The lower mold testing assembly (2) further comprises a lower mold base plate (77) located below the testing lower mold plate (72), the lower mold base plate (77) is arranged on the upper surface of the testing operation table (1), and a lower mold cushion block (78) is arranged between the testing lower mold plate (72) and the lower mold base plate (77), the upper end and the lower end of the lower mold cushion block (78) are respectively screwed with the testing lower mold plate (72) and the lower mold base plate (77) on the corresponding side; The upper surface of the lower mold base plate (77) is arranged with a proximity sensor (79).

5. A test apparatus as claimed in claim 1, wherein: The support frame (3) comprises a fixed top plate (31), the cylinder body of the driving cylinder (4) is screwed and fastened to the upper surface of the fixed top plate (31), and the piston rod of the driving cylinder (4) passes through the fixed top plate (31) and extends to the lower end side of the fixed top plate (31); A plurality of guide columns (32) are arranged between the fixed top plate (31) and the testing operation table (1) and are arranged vertically, the upper ends of the guide columns (32) are respectively connected with the fixed top plate (31), and the lower ends of the guide columns (32) are respectively connected with the testing operation table (1); the lifting slide (5) is respectively arranged with a guide sleeve (51) corresponding to each guide column (32), and each guide column (32) vertically passes through the center hole of the corresponding guide sleeve (51).

6. A test apparatus as claimed in claim 1, wherein: The upper end of the lifting slide (5) is screwed with a cylinder joint (52) corresponding to the driving cylinder (4), and the outer extension end of the piston rod of the driving cylinder (4) is connected with the cylinder joint (52).

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