Spring pressure testing device

Abstract

This invention discloses a spring pressure testing device, comprising a base plate, a pressure testing mechanism, and a loading / unloading mechanism. Both the pressure testing mechanism and the loading / unloading mechanism are disposed on the upper surface of the base plate. The pressure testing mechanism includes a bottom support assembly and an upper pressure application assembly. The bottom support assembly is fixed to the upper surface of the base plate. The upper pressure application assembly includes a pressure testing section horizontally movable on the upper surface of the base plate and a horizontal drive section for driving the pressure testing section. The loading / unloading mechanism includes a spring moving section vertically lifted on the upper surface of the base plate and a vertical drive section for driving the spring moving section. The spring moving section is located directly above the bottom support assembly. The spring moving section includes a moving bracket and a horizontal conveyor belt. The horizontal conveyor belt is disposed on the moving bracket and is used for horizontally conveying the springs. The conveyor belt body of the horizontal conveyor belt is provided with a plurality of evenly distributed spring clamping members. This invention eliminates the need for manual intervention during loading and unloading, effectively improving testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of hot-rolled spring pressure testing, and more particularly to a spring pressure testing apparatus. Background Technology

[0002] Locomotive bogie springs have a relatively large diameter and are generally produced using a hot-rolling process. After production, many samples need to be taken for pressure testing to confirm whether the batch of springs is qualified. The pressure test is generally conducted using a pneumatic spring pressure testing machine. In practice, the springs are manually loaded, then the position is adjusted, and then the spring pressure testing machine operates to perform the pressure test. Finally, the springs are removed and replaced with the next spring.

[0003] In the aforementioned related technologies, since the locomotive bogie springs themselves have a large mass and the number of test samples is large, it is time-consuming and labor-intensive to manually load and unload the springs and adjust their positions at the same time, which is not conducive to improving the efficiency of testing. At the same time, operators are also prone to accidental injury. Summary of the Invention

[0004] To reduce manual intervention and improve testing efficiency, this invention provides a spring pressure testing device.

[0005] The spring pressure testing device provided by this invention adopts the following technical solution:

[0006] A spring pressure testing device includes a base plate, a pressure testing mechanism, and a loading / unloading mechanism. Both the pressure testing mechanism and the loading / unloading mechanism are disposed on the upper surface of the base plate. The pressure testing mechanism includes a bottom support assembly and an upper pressure application assembly. The bottom support assembly is fixed to the upper surface of the base plate. The upper pressure application assembly includes a pressure testing section horizontally movable on the upper surface of the base plate and a horizontal drive section for driving the pressure testing section. The loading / unloading mechanism includes a spring moving section vertically lifted on the upper surface of the base plate and a vertical drive section for driving the spring moving section. The spring moving section is located directly above the bottom support assembly. The spring moving section includes a moving bracket and a horizontal conveyor belt. The horizontal conveyor belt is disposed on the moving bracket and used for horizontally conveying springs. A plurality of evenly distributed spring clamping members are disposed on the conveyor belt body of the horizontal conveyor belt.

[0007] By adopting the above technical solution, when loading and unloading are required, the horizontal drive unit moves the pressure test unit away from the bottom support component, and then the vertical drive unit moves the spring moving unit down towards the bottom support component. When the spring is being loaded, the spring clamp releases the spring on it so that the spring is placed on the bottom support component, thus ensuring accurate spring loading. When the spring is being unloaded, the spring clamp starts to grab the spring on the bottom support component. In this way, no manual intervention is required during loading and unloading, effectively improving the testing efficiency.

[0008] Optionally, the spring clamping member includes a pair of clamping electric cylinders and a pair of semi-circular clamping rings; the openings of the pair of clamping rings are opposite to each other; the clamping electric cylinders correspond one-to-one with the clamping rings and the pair of clamping electric cylinders drive the pair of clamping rings to move away from or towards each other synchronously.

[0009] By adopting the above technical solution, the spring is gripped when a pair of clamping rings are close to each other, and the spring is released when a pair of clamping rings are far apart, which makes it convenient to pick up and put down the spring.

[0010] Optionally, the spring clamping member further includes a clamping base plate; the clamping base plate is fixed on the conveyor belt body; a pair of clamping electric cylinders and a pair of clamping rings are disposed on the end face of the clamping base plate away from the conveyor belt body.

[0011] By adopting the above technical solution, a pair of clamping rings grip the spring, with one end of the spring abutting against the clamping base plate, which makes the spring position stable and facilitates loading and unloading.

[0012] Optionally, the movable support includes a pair of downward-facing "U"-shaped support side plates; the clamping base plate and the conveyor belt body are located between the pair of support side plates; a pair of horizontally arranged cylindrical guide posts are respectively formed on a pair of end faces of the clamping base plate near the pair of support side plates; annular guide grooves are respectively formed on the end faces of the pair of support side plates that are close to each other, allowing the pair of guide posts on the corresponding sides to slide; the path of the guide grooves is the same as the conveying path of the horizontal conveyor belt.

[0013] By adopting the above technical solution, when the horizontal conveyor belt drives the spring clamping component to move, the two pairs of guide posts on the clamping base plate are slidably set in a pair of guide ring grooves. This makes the position of the clamping base plate more stable, and thus the position of the spring on the clamping base plate is also more stable, which is beneficial for loading and unloading materials.

[0014] Optionally, the pressure testing unit includes a pressure support frame, a pressure component, and a pressure seat; the pressure seat is vertically movably mounted on the pressure support frame; the pressure component is fixed on the pressure support frame and is used to drive the pressure seat; the pressure seat includes a circular plate-shaped pressure plate and several vertically arranged cylindrical upper limit rods evenly distributed on the pressure plate; the lower end of the upper limit rod is lower than the lower end face of the pressure plate.

[0015] By adopting the above technical solution, the upper limit rod plays a limiting and blocking role, so that during the pressure test, the force direction of the spring is completely axial and the radial movement of the spring is prevented.

[0016] Optionally, the upper limit rod is vertically inserted through the pressure plate, and the height of the upper limit rod relative to the pressure plate is adjustable.

[0017] By adopting the above technical solution, the upper and lower positions of the upper limit lever can be adjusted, so that the limiting and blocking functions of the upper limit lever can be adjusted to the optimal level.

[0018] Optionally, the bottom support assembly includes a support base and a lower spring support member disposed on the upper surface of the support base; the lower spring support member includes a lower support plate and a plurality of vertically arranged cylindrical lower limit rods evenly distributed on the lower support plate; when the pressure seat is located directly above the bottom support assembly, the upper limit rod and the lower limit rod correspond one-to-one.

[0019] By adopting the above technical solution, the upper limit rod limits and blocks the upper end of the spring, and the lower limit rod limits and blocks the lower end of the spring, so that the position of the spring is more stable during pressure testing.

[0020] Optionally, it also includes a non-conforming discharge mechanism; the non-conforming discharge mechanism includes a pushing component and a horizontal discharge component; the pushing component and the horizontal discharge component are disposed on the upper surface of the base plate and located on both sides of the bottom support component; the pushing component and the horizontal discharge component are distributed along the moving direction of the pressure test section; the lower end support member of the spring also includes a lower end abutment plate fixed on the support base and a lifting drive component fixed on the upper surface of the lower end abutment plate; the lifting drive component drives the lower end support plate to move vertically up and down; the lower limit rod is fixed on the upper surface of the lower end abutment plate and passes vertically through the lower end support plate; the pushing component is used to push the non-conforming spring on the lower end support plate into the horizontal discharge component; the horizontal discharge component is used to discharge the non-conforming spring.

[0021] By adopting the above technical solution, the lifting drive component drives the lower support plate to rise so that the upper surfaces of the lower support plate and the lower limit rod are flush. Then, the pushing component pushes the spring on the lower support plate into the horizontal discharge component. The horizontal discharge component discharges the unqualified springs, which makes it convenient to discharge the unqualified springs and effectively completes the classification of qualified and unqualified springs.

[0022] Optionally, the horizontal discharge assembly includes a discharge support frame and a horizontal discharge conveyor belt; the discharge support frame includes an inner support frame near the bottom support assembly and an outer support frame away from the bottom support assembly; the discharge conveyor belt body of the horizontal discharge conveyor belt is disposed between the inner support frame and the outer support frame; the inner support frame includes an inner support body; the outer support frame includes an outer support body; the upper end face of the inner support body, the upper end face of the outer support body, the upper surface of the discharge conveyor belt body, and the upper end face of the lower limit rod are on the same horizontal plane; the lower support plate is a cubic plate and the end faces of the lower support plate and the inner support body that are close to each other are vertically aligned.

[0023] By adopting the above technical solution, since the upper end face of the inner support body, the upper end face of the outer support body, the upper surface of the discharge conveyor belt body of the horizontal discharge conveyor belt, and the upper end face of the lower limit rod are on the same horizontal plane, and the lower support plate is a cubic plate with the lower support plate and the end faces of the inner support body that are close to each other vertically aligned, the lower end moves along the horizontal plane during the unqualified spring pushing process, which is beneficial to the unqualified spring pushing.

[0024] Optionally, an upper baffle is formed on the upper surface of the outer support body; the end face of the upper baffle near the discharge conveyor belt body is flush with the end face of the outer support body near the discharge conveyor belt body.

[0025] By adopting the above technical solution, the presence of the upper baffle can prevent the spring from exceeding the discharge conveyor belt body when it is pushed, and can also prevent the spring from accidentally tilting to the side of the outer support body.

[0026] In summary, the beneficial effects of the present invention are as follows:

[0027] 1. No manual intervention is required during loading and unloading, effectively improving testing efficiency.

[0028] 2. The unqualified springs are easy to unload, effectively classifying qualified and unqualified springs. Attached Figure Description

[0029] Figure 1 This is a frontal structural schematic diagram of the present invention.

[0030] Figure 2 This is the invention Figure 1 A schematic diagram of the cross-section of AA.

[0031] Figure 3 This is the invention Figure 2 A cross-sectional structural diagram of the bottom support component 30 and the upper pressure application component 40.

[0032] Figure 4This is the invention Figure 3 A magnified schematic diagram of part B in the diagram.

[0033] Figure 5 This is a cross-sectional structural schematic diagram of the spring moving part of the present invention.

[0034] Figure 6 This is a top view of the structure of the spring clamp 54 of the present invention.

[0035] Figure 7 This is a cross-sectional structural schematic diagram of the horizontal discharge assembly 70 of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Base plate; 11. Rear support plate; 12. Front support plate; 13. Pushing support plate;

[0038] 20. Pressure testing facility;

[0039] 30. Bottom support assembly; 31. Support base; 32. Lower end abutment plate; 33. Lower limit rod; 34. Lifting drive cylinder; 35. Lower end support plate;

[0040] 40. Upper pressure application assembly; 41. Horizontal drive motor; 42. Horizontal drive screw; 43. Pressure application support plate; 430. Vertical moving slot; 431. Vertical guide post; 44. Vertical adjustment motor; 441. Vertical adjustment screw; 45. Horizontal support plate; 46. Pressure application seat; 461. Pressure plate; 4610. Vertical connecting hole; 4611. Vertical guide plate; 462. Upper limit rod; 463. Limit bolt; 47. Pressure application cylinder;

[0041] 50. Loading / unloading mechanism; 51. Vertical drive electric cylinder; 52. Moving bracket; 521. Support side plate; 5210. Guide ring groove; 522. Lower connecting plate; 53. Horizontal conveyor belt; 531. Horizontal conveyor motor; 532. Horizontal conveyor belt pulley; 533. Conveyor belt body; 54. Spring clamping component; 541. Clamping base plate; 5411. Guide column; 5412. Electric cylinder fixing plate; 542. Clamping electric cylinder; 543. Clamping ring;

[0042] 60. Pushing assembly; 61. Pushing electric cylinder; 62. Pushing plate;

[0043] 70. Horizontal discharge assembly; 71. Discharge support frame; 711. Inner support frame; 7111. Inner support body; 7112. Inner support foot; 712. Outer support frame; 7121. Outer support body; 7122. Upper baffle; 7123. Outer support foot; 72. Horizontal discharge conveyor belt; 721. Discharge conveyor belt pulley; 722. Discharge conveyor motor; 723. Discharge conveyor belt body. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-7 The present invention will be described in further detail below.

[0045] A spring compression testing device, reference Figure 1 and Figure 2 The system includes a base plate 10, a pressure testing mechanism 20, and a loading / unloading mechanism 50. Both the pressure testing mechanism 20 and the loading / unloading mechanism 50 are located on the upper surface of the base plate 10. The pressure testing mechanism 20 includes a bottom support assembly 30 and an upper pressure application assembly 40. The upper pressure application assembly 40 includes a pressure testing section that is horizontally movable on the upper surface of the base plate 10 and a horizontal drive section for driving the pressure testing section. The bottom support assembly 30 is used to support the spring. The pressure testing section is used to apply a downward force to the spring and detect the pressure and deformation of the spring. The loading / unloading mechanism 50 includes a spring moving section that is vertically lifted and lowered on the upper surface of the base plate 10 and a vertical drive section for driving the spring moving section. The spring moving section is located directly above the bottom support assembly 30 and is used to transport the spring. A processor (not shown) for data processing and analysis is provided on the base plate 10.

[0046] refer to Figure 2 and Figure 3 The bottom support assembly 30 includes a support base 31 fixed to the upper surface of the base plate 10 and a lower spring support member disposed on the upper surface of the support base 31. The lower spring support member includes a lower abutment plate 32 fixed to the upper surface of the support base 31, a lifting drive member fixed to the upper surface of the lower abutment plate 32, and a lower support plate 35 that is lifted and positioned directly above the support base 31. Several evenly distributed cylindrical lower limit rods 33 are fixed to the upper surface of the lower abutment plate 32. The lower support plate 35 is vertically sleeved on the lower limit rods 33. The lifting drive member is a lifting drive cylinder 34. The lower support plate 35 is fixed to the upper end of the piston rod of the lifting drive cylinder 34. During normal operation, the upper surface of the lower limit rod 33 is higher than the upper surface of the lower support plate 35, and the lower end of the spring is placed on the upper surface of the lower support plate 35 and located between the upper ends of the lower limit rods 33.

[0047] refer to Figures 1-4The pressure testing unit includes a pressure support frame, a pressure component, and a pressure base 46. The pressure support frame is equipped with a sensor (not shown) found in existing spring pressure testing machines for real-time monitoring of spring deformation. The pressure support frame includes a pair of pressure support plates 43 and a horizontal support plate 45 located on either side of the support base 31. The horizontal support plate 45 is vertically movable between the pair of pressure support plates 43. Each pair of pressure support plates 43 is equipped with a vertical adjustment drive. The pair of vertical adjustment drives are used to adjust the height of the horizontal support plate 45 on the pair of pressure support plates 43. The pressure component is a pressure cylinder 47. The pressure cylinder 47 is fixed to the upper part of the horizontal support plate 45. On the end face; the pressure seat 46 includes a circular plate-shaped pressure plate 461 fixed to the lower end of the piston rod of the pressure cylinder 47 and a number of vertically arranged cylindrical upper limit rods 462 evenly distributed around the circumference on the pressure plate 461; the pressure plate 461 is formed with a number of vertically connected through holes 4610 evenly distributed around the circumference for the upper limit rods 462 to pass through vertically; a number of circumferentially evenly distributed limiting bolts 463 are radially screwed onto the cylindrical surface of the pressure plate 461; the limiting bolts 463 correspond one-to-one with the upper limit rods 462 and the inner end of the limiting bolts 463 abuts against the upper limit rods 462 on the corresponding side; the upper limit rods 462 correspond one-to-one with the lower limit rods 33.

[0048] During the pressure test, the lower end of the spring is positioned between the upper ends of all the lower limit rods 33, and the upper end is positioned between the lower ends of all the upper limit rods 462, with the spring's axis set vertically. This prevents the spring from moving horizontally and facilitates the spring test.

[0049] refer to Figures 1-3 A pair of pressure support plates 43 are respectively formed on their close-to-each end faces with vertical moving grooves 430; a pair of vertical guide posts 431 are formed between the upper and lower side walls of the vertical moving grooves 430; a pair of circumferentially evenly distributed vertical guide plates 4611 are formed on the upper end of the cylindrical surface of the pressure plate 461; the vertical guide plates 4611 are located in the vertical moving grooves 430 on the corresponding side and are vertically fitted on the pair of vertical guide posts 431 on the corresponding side; the cooperation of the pair of vertical guide plates 4611 and the two pairs of vertical guide posts 431 makes the vertical movement of the pressure plate 461 more accurate.

[0050] refer to Figures 1-3The vertical adjustment drive includes a vertical adjustment screw 441 pivotally connected between the upper and lower side walls of the vertical moving groove 430; a vertical adjustment motor 44 is fixedly mounted on the upper surface of the pressure support plate 43; the upper end of the vertical adjustment screw 441 is fixedly connected to the output shaft of the vertical adjustment motor 44 on the corresponding side; both ends of the horizontal support plate 45 are respectively sleeved on a pair of vertical guide posts 431 on the corresponding side and screwed onto the vertical adjustment screw 441 on the corresponding side. By driving a pair of vertical adjustment motors 44 to drive a pair of vertical adjustment screws 441 to rotate synchronously, the horizontal support plate 45 is driven to rise and fall vertically, thereby adjusting the initial height of the pressure plate 461 to accommodate springs of different lengths.

[0051] refer to Figure 1 and Figure 2 A pair of rear support plates 11 and a pair of front support plates 12 are fixed on the upper surface of the base plate 10; the front support plates 12 correspond one-to-one with the pressure support plates 43; the rear support plates 11 correspond one-to-one with the pressure support plates 43; the pressure support plates 43 are located between the front support plates 12 and the rear support plates 11 on the corresponding side; the horizontal drive unit includes a pair of horizontal drive screws 42 and a pair of horizontal drive motors 41; the horizontal drive screws 42 correspond one-to-one with the pressure support plates 43; the horizontal drive screws 42 are pivotally connected between the front support plates 12 and the rear support plates 11 on the corresponding side and the pressure support plates 43 are screwed onto the horizontal drive screws 42 on the corresponding side; the horizontal drive motors 41 correspond one-to-one with the pressure support plates 43; the horizontal drive motors 41 are fixed on the rear support plates 11 on the corresponding side; the output shaft of the horizontal drive motors 41 is fixedly connected to the horizontal drive screws 42 on the corresponding side. A pair of horizontal drive motors 41 drive a pair of horizontal drive screws 42 to rotate. At the same time, since a pair of pressure support plates 43 are provided between a pair of pressure support plates 43, the pair of pressure support plates 43 can be driven to move horizontally.

[0052] refer to Figure 1 , Figure 2 and Figure 5 The spring-moving part includes a moving bracket 52 and a horizontal conveyor belt 53; a pair of downward-facing "U"-shaped support side plates 521; a lower connecting plate 522 is formed between the lower ends of the vertical portions of the pair of support side plates 521; the vertical drive part includes a pair of vertical drive cylinders 51; a bottom support assembly 30 and an upper pressure assembly 40 are located between the pair of vertical drive cylinders 51; the vertical drive cylinders 51 are fixed to the upper end surface of the base plate 10; the lower connecting plate 522 corresponds one-to-one with the vertical drive cylinders 51 and is fixed to the upper end of the piston rod of the vertical drive cylinder 51. The pair of vertical drive cylinders 51 drive the pair of support side plates 521 to move vertically through the pair of lower connecting plates 522.

[0053] refer to Figure 2 and Figure 5The horizontal conveyor belt 53 includes a pair of horizontal conveyor pulleys 532 rotatably connected between a pair of support side plates 521, a conveyor belt body 533 mounted on the pair of horizontal conveyor pulleys 532, and a horizontal conveyor motor 531 fixed on one of the support side plates 521. The rotation center axis of one of the horizontal conveyor pulleys 532 is coaxially fixed on the output shaft of the horizontal conveyor motor 531. The conveyor belt body 533 is provided with evenly distributed spring clamps 54. The conveying direction of the conveyor belt body 533 is perpendicular to the moving direction of the pressure test section. The conveyor belt body 533 moves intermittently at equal intervals under the drive of the horizontal conveyor motor 531, so that the springs clamped by the spring clamps 54 move to directly above the bottom support assembly 30.

[0054] refer to Figure 5 and Figure 6 The spring clamping component 54 includes a clamping base plate 541 fixed on the conveyor belt body 533, a pair of clamping electric cylinders 542 and a pair of clamping rings 543 fixed on the end face of the clamping base plate 541 away from the conveyor belt body 533; an electric cylinder fixing plate 5412 is formed on the end face of the clamping base plate 541 away from the conveyor belt body 533; the clamping electric cylinders 542 correspond one-to-one with the electric cylinder fixing plates 5412 and the clamping electric cylinders 542 are fixed on the electric cylinder fixing plates 5412 on the corresponding side; the clamping rings 543 are semi-circular and the openings of the pair of clamping rings 543 are arranged opposite to each other; the inner diameter of the clamping rings 543 is the same as the outer diameter of the spring; the clamping rings 543 correspond one-to-one with the clamping electric cylinders 542 and the clamping rings 543 are fixed on the piston rods of the clamping electric cylinders 542 on the corresponding side; the pair of clamping electric cylinders 542 drive the pair of clamping rings 543 to move away from or closer to each other. When the spring is being fed, the spring clamping member 54 is located on the upper side of the conveyor belt body 533. The spring is placed from top to bottom on the end face of the clamping base plate 541 away from the conveyor belt body 533 and between a pair of clamping rings 543. Then, a pair of clamping electric cylinders 542 drive a pair of clamping rings 543 to move closer to each other and clamp the spring.

[0055] refer to Figure 2 and Figure 5 A pair of horizontally arranged cylindrical guide posts 5411 are formed on a pair of end faces of the clamping base plate 541 near a pair of support side plates 521; annular guide grooves 5210 are formed on the end faces of the pair of support side plates 521 near each other, for the guide posts 5411 on the corresponding side to slide; the path of the guide grooves 5210 is the same as the conveying path of the horizontal conveyor belt 53.

[0056] To facilitate the discharge of defective springs, refer to Figure 2 and Figure 7It also includes a non-conforming discharge mechanism; the non-conforming discharge mechanism includes a pusher assembly 60 and a horizontal discharge assembly 70; the pusher assembly 60 and the horizontal discharge assembly 70 are disposed on the upper surface of the base plate 10 and located on both sides of the bottom support assembly 30; the pusher assembly 60 and the horizontal discharge assembly 70 are distributed along the moving direction of the pressure test section.

[0057] refer to Figure 2 A pusher support plate 13 is fixed on the upper surface of the base plate 10; the pusher assembly 60 includes a pusher electric cylinder 61 fixed on the pusher support plate 13 and a pusher plate 62 fixed on the piston rod of the pusher electric cylinder 61; the pusher support plate 13 is located between a pair of horizontal drive screws 42.

[0058] refer to Figure 2 and Figure 7 The horizontal discharge assembly 70 includes a discharge support frame 71 and a horizontal discharge conveyor belt 72. The discharge support frame 71 includes an inner support frame 711 near the bottom support assembly 30 and an outer support frame 712 away from the bottom support assembly 30. The inner support frame 711 includes a sideways L-shaped inner support body 7111 and several inner support feet 7112 fixed to the lower end face of the horizontal part of the inner support body 7111. The outer support frame 712 includes a sideways L-shaped outer support body 7121, several outer support feet 7123 fixed to the lower end face of the horizontal part of the outer support body 7121, and an upper baffle 7122 formed on the upper end face of the outer support body 7121. The end face of the upper baffle 7122 near the discharge conveyor belt body 723 is flush with the end face of the outer support body 7121 near the discharge conveyor belt body 723.

[0059] refer to Figure 2 and Figure 7 The horizontal discharge conveyor belt 72 includes a pair of discharge conveyor pulleys 721 rotatably connected between the vertical part of the inner support body 7111 and the vertical part of the outer support body 7121, a discharge conveyor belt body 723 installed between the pair of discharge conveyor pulleys 721, and a discharge conveyor motor 722 fixed on the outer support body 7121; the rotation center axis of one of the discharge conveyor pulleys 721 is fixedly connected to the output shaft of the discharge conveyor motor 722; the discharge conveyor belt body 723 is located between the inner support body 7111 and the outer support body 7121; the upper end face of the inner support body 7111, the upper end face of the outer support body 7121, the upper surface of the discharge conveyor belt body 723, and the upper end face of the lower limit rod 33 are on the same horizontal plane; the lower support plate 35 is a cubic plate and the end faces of the lower support plate 35 and the inner support body 7111 that are close to each other are vertically aligned.

[0060] The working principle of a spring pressure testing device is as follows:

[0061] Initial state: The pressure test section is away from the bottom support assembly 30; during loading, the spring test sample is placed on the upper surface of the upper clamping base plate 541 and clamped by a pair of clamping rings 543. It is then intermittently conveyed by the horizontal conveyor belt 53 until the spring is directly above the bottom support assembly 30. Next, a pair of vertical drive cylinders 51 drive the moving bracket 52 to descend, so that the spring reaches the upper surface of the lower support plate 35 vertically. Then, the pair of clamping rings 543 move away from each other, so that the spring is placed on the upper surface of the lower support plate 35. Then, a pair of vertical drive cylinders 51 drive the moving bracket 52 to rise back to its original position. Then, the pressure test section moves horizontally to the bottom support assembly 30, and then performs a pressure test on the spring. Then, the pressure test section moves away from the bottom support assembly 30. If... If the spring passes the test, a pair of vertical drive cylinders 51 lower the moving bracket 52, and a pair of clamping rings 543 clamp the spring that has passed the test. Then, the pair of vertical drive cylinders 51 raise the moving bracket 52. If the spring fails the test, the lifting drive cylinder 34 raises the lower support plate 35 until the upper surfaces of the lower support plate 35 and the lower limit rod 33 are flush. Then, the pushing cylinder 61 moves the pushing plate 62 horizontally. The pushing plate 62 pushes the unqualified spring horizontally along the upper surface of the lower support plate 35 and the upper surface of the outer bracket body 7121 until it enters the discharge conveyor belt body 723. Finally, the discharge conveyor belt body 723 carries the unqualified spring to the next process. Then, according to the above principle, the loading and unloading mechanism 50 continues to load materials to the bottom support assembly 30.

[0062] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A spring pressure testing device, characterized in that: The system includes a base plate (10), a pressure testing mechanism (20), and a loading / unloading mechanism (50); both the pressure testing mechanism (20) and the loading / unloading mechanism (50) are disposed on the upper surface of the base plate (10); the pressure testing mechanism (20) includes a bottom support assembly (30) and an upper pressure application assembly (40); the bottom support assembly (30) is fixed to the upper surface of the base plate (10); the upper pressure application assembly (40) includes a pressure testing section that is horizontally movable on the upper surface of the base plate (10) and a horizontal component for driving the pressure testing section. The drive unit; the loading and unloading mechanism (50) includes a spring moving part that is vertically and vertically mounted on the upper surface of the base plate (10) and a vertical drive unit for driving the spring moving part; the spring moving part is located directly above the bottom support assembly (30); the spring moving part includes a moving bracket (52) and a horizontal conveyor belt (53); the horizontal conveyor belt (53) is mounted on the moving bracket (52) and is used for horizontally conveying springs; a plurality of evenly distributed spring clamping members (54) are provided on the conveyor belt body (533) of the horizontal conveyor belt (53); The spring clamp (54) includes a pair of clamping electric cylinders (542) and a pair of semi-circular clamping rings (543); the openings of the pair of clamping rings (543) are opposite to each other; the clamping electric cylinders (542) correspond one-to-one with the clamping rings (543) and the pair of clamping electric cylinders (542) drive the pair of clamping rings (543) to move away from or towards each other synchronously; The spring clamp (54) also includes a clamping base plate (541); the clamping base plate (541) is fixed on the conveyor belt body (533); a pair of clamping electric cylinders (542) and a pair of clamping rings (543) are disposed on the end face of the clamping base plate (541) away from the conveyor belt body (533); The movable support (52) includes a pair of downward-facing "U"-shaped support side plates (521); the clamping base plate (541) and the conveyor belt body (533) are located between the pair of support side plates (521); a pair of horizontally arranged cylindrical guide posts (5411) are formed on a pair of end faces of the clamping base plate (541) near the pair of support side plates (521); annular guide grooves (5210) are formed on the end faces of the pair of support side plates (521) near each other, allowing the pair of guide posts (5411) on the corresponding side to slide; the path of the guide grooves (5210) is the same as the conveying path of the horizontal conveyor belt (53).

2. The spring pressure testing device according to claim 1, characterized in that: The pressure test section includes a pressure support frame, a pressure component, and a pressure seat (46); the pressure seat (46) is vertically movable on the pressure support frame; the pressure component is fixed on the pressure support frame and is used to drive the pressure seat (46); the pressure seat (46) includes a circular plate-shaped pressure plate (461) and several vertically arranged cylindrical upper limit rods (462) evenly distributed on the pressure plate (461); the lower end of the upper limit rod (462) is lower than the lower end face of the pressure plate (461).

3. The spring pressure testing device according to claim 2, characterized in that: The upper limit rod (462) is vertically inserted through the pressure plate (461), and the height of the upper limit rod (462) relative to the pressure plate (461) is adjustable.

4. The spring pressure testing device according to claim 2, characterized in that: The bottom support assembly (30) includes a support base (31) and a lower spring support member disposed on the upper surface of the support base (31); the lower spring support member includes a lower support plate (35) and a plurality of vertically arranged cylindrical lower limit rods (33) evenly distributed on the lower support plate (35); when the pressure seat (46) is located directly above the bottom support assembly (30), the upper limit rod (462) and the lower limit rod (33) correspond one-to-one.

5. The spring pressure testing device according to claim 4, characterized in that: It also includes a non-conforming discharge mechanism; the non-conforming discharge mechanism includes a pusher assembly (60) and a horizontal discharge assembly (70); the pusher assembly (60) and the horizontal discharge assembly (70) are disposed on the upper surface of the base plate (10) and located on both sides of the bottom support assembly (30); the pusher assembly (60) and the horizontal discharge assembly (70) are distributed along the moving direction of the pressure test section; the lower end support of the spring also includes a lower end abutting fixed on the support base (31). The plate (32) and the lifting drive fixed on the upper surface of the lower abutment plate (32); the lifting drive drives the lower support plate (35) to rise and fall vertically; the lower limit rod (33) is fixed on the upper surface of the lower abutment plate (32) and passes vertically through the lower support plate (35); the pushing assembly (60) is used to push the defective spring on the lower support plate (35) into the horizontal discharge assembly (70); the horizontal discharge assembly (70) is used to discharge the defective spring.

6. The spring pressure testing device according to claim 5, characterized in that: The horizontal discharge assembly (70) includes a discharge support frame (71) and a horizontal discharge conveyor belt (72); the discharge support frame (71) includes an inner support frame (711) near the bottom support assembly (30) and an outer support frame (712) away from the bottom support assembly (30); the discharge conveyor belt body (723) of the horizontal discharge conveyor belt (72) is disposed between the inner support frame (711) and the outer support frame (712); the inner support frame (711) includes an inner support... The frame body (7111); the outer support frame (712) includes an outer support body (7121); the upper end face of the inner support body (7111), the upper end face of the outer support body (7121), the upper surface of the discharge conveyor belt body (723) and the upper end face of the lower limit rod (33) are on the same horizontal plane; the lower end support plate (35) is a cubic plate and the end faces of the lower end support plate (35) and the inner support body (7111) that are close to each other are vertically aligned.

7. A spring pressure testing device according to claim 6, characterized in that: An upper baffle (7122) is formed on the upper surface of the outer support body (7121); the end face of the upper baffle (7122) near the discharge conveyor belt body (723) is flush with the end face of the outer support body (7121) near the discharge conveyor belt body (723).

Images