LJ24222 rack locking force testing machine

Abstract

The utility model provides an LJ24222 rack locking force testing machine which comprises a machine body, the machine body is provided with a base and a control case located above the base, a testing space is formed between the control case and the base, the top of the base is fixedly provided with a deck plate, and the deck plate is provided with a clamping groove. The top of the countertop is fixedly connected with a positioning seat and an air cylinder control valve group positioned behind the positioning seat, the positioning seat is provided with a row of test air cylinders and a thrust air cylinder positioned behind the row of test air cylinders, and the top of the countertop is provided with a supporting plate close to the front. According to the utility model, the product bottom die is arranged on the countertop, so that a test product for locking racks can be conveniently supported and positioned, the clamp cylinders are arranged at two sides of the product bottom die, so that the test product can be conveniently clamped and fixed, and the row of test cylinders are arranged behind the test product, so that a row of racks on the test product can be conveniently and independently pressurized and tested. And the efficiency of testing the locking force of a plurality of racks is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rack locking force testing, in particular to an LJ24222 rack locking force testing machine. Background Art

[0002] The movement of a rack is typically driven by a gear or direct-drive component. Gear drive refers to the gear's rotational motion driving the rack's linear motion. When the gear stops rotating, the rack's linear motion stops. Direct-drive components are typically telescopic components, such as pneumatic and hydraulic cylinders, and electric push rods, whose telescopic action drives the rack's motion. When the rack stops, it experiences an external thrust. The gear and direct-drive component must provide a resistance greater than this thrust to prevent the rack's motion. This resistance refers to the locking force exerted by the control components on the rack.

[0003] Currently, rack locking force testing involves not only measuring rack movement but also determining the maximum locking force experienced by the rack teeth—that is, the maximum force experienced when a tooth breaks. However, existing rack locking force testing typically involves testing each rack individually, which can be inefficient for large numbers of racks.

[0004] To this end, the utility model provides an LJ24222 rack locking force testing machine. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an LJ24222 rack locking force testing machine to solve the problems raised in the above background technology. The utility model has the function of performing locking force tests on multiple racks at the same time, and also has the advantage of more convenient loading and unloading.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: LJ24222 rack locking force testing machine, including a body, a base and a control box located above the base are provided on the body, a test space is formed between the control box and the base, a table panel is fixedly provided on the top of the base, a positioning seat and a cylinder control valve group located behind the positioning seat are fixedly connected to the top of the table panel, a row of test cylinders and a thrust cylinder located behind the row of test cylinders are provided on the positioning seat, a support plate close to the front is provided on the top of the support plate, a product bottom mold and clamp cylinders located on both sides of the product bottom mold are fixedly provided on the top of the support plate, and the product bottom mold is used to support and fix the test product.

[0007] Furthermore, the positioning seat includes a cylinder support base plate, a cylinder support side plate and a cylinder fixing plate. The cylinder support base plate is fixedly installed on the upper end surface of the table panel. The cylinder fixing plate is arranged above the cylinder support base plate and its two ends are welded together through the cylinder support side plate and the top of the cylinder support base plate. The test cylinder and thrust cylinder are both fixedly connected to the bottom of the cylinder fixing plate by bolts.

[0008] Furthermore, the upper end surface of the cylinder support base plate is provided with a waist-shaped adjustment hole connected to the table panel by bolts, and the upper end surface of the table panel is fixedly connected with limit pins that abut against both ends of the cylinder support base plate.

[0009] Furthermore, the cylinder control valve group includes solenoid valves and a manifold, and the top of the manifold is fixedly connected to a row of solenoid valves corresponding one to one to a row of thrust cylinders.

[0010] Furthermore, an enclosure is provided between the control chassis and the base, and the enclosure, the base and the control chassis form a test space.

[0011] Furthermore, a control panel is provided on the front side of the control chassis, a display is provided on the control panel, and a cooling fan is provided on one side of the control chassis.

[0012] Furthermore, an emergency stop button is provided at the front end of the base.

[0013] Furthermore, a foot pad is provided at the bottom of the base.

[0014] Furthermore, the support plate and the table panel are connected in a forward and backward sliding manner, the bottom of the table panel is fixedly connected with a transmission screw, the bottom of the support plate is fixedly connected with a transmission block with a gap passing through the table panel, and the bottom of the transmission block is welded with a thread sleeve mounted on the outside of the transmission screw.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The utility model facilitates the support and positioning of the test product of the locking rack by placing the product bottom mold on the table panel, and arranges clamp cylinders on both sides of the product bottom mold to facilitate clamping and fixing the test product. A row of test cylinders is arranged behind the test product to facilitate separate pressure testing of a row of racks on the test product, thereby greatly improving the efficiency of the locking force test of multiple racks.

[0017] 2. The utility model sets a support plate for supporting the product bottom mold on the table panel. The support plate and the table panel are connected by sliding back and forth, and then a transmission screw is set to control the back and forth movement of the support plate. This arrangement makes it more convenient for the test product to enter and exit the test space, and makes the docking and separation of the test product and the product bottom mold more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the LJ24222 rack locking force testing machine of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the positioning seat of the LJ24222 rack locking force testing machine of the utility model;

[0020] Figure 3 This is a schematic diagram of the cylinder control valve group of the LJ24222 rack locking force testing machine of the present utility model;

[0021] Figure 4 This is a cross-sectional view of the cooperation between the support plate, table panel and transmission screw of the LJ24222 rack locking force testing machine of the present utility model.

[0022] In the figure: 1. Machine body; 11. Base; 111. Table panel; 1111. Support plate; 11111. Transmission block; 1112. Limit pin; 12. Control chassis; 121. Control panel; 1211. Display; 13. Positioning seat; 131. Cylinder support base plate; 1311. Waist-shaped adjustment hole; 132. Cylinder support side plate; 133. Cylinder fixing plate; 14. Test cylinder; 15. Product bottom mold; 16. Cylinder control valve group; 161. Solenoid valve; 162. Manifold; 17. Thrust cylinder; 3. Test space; 8. Clamp cylinder; 9. Test product; 101. Enclosure; 102. Cooling fan; 103. Emergency stop button; 104. Foot pad; 105. Transmission screw; 106. Thread sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figures 1 to 3 The present utility model provides a technical solution: an LJ24222 rack locking force tester, comprising a body 1, a base 11 and a control chassis 12 located above the base 11. A foot pad 104 is provided at the bottom of the base 11. The control chassis 12 functions as a component for controlling the startup and display of the machine. Specifically, a control panel 121 is provided on the front side of the control chassis 12. A display 1211 is provided on the control panel 121. The display 1211 is used to display the magnitude of the locking force generated during the force test on each rack. A cooling fan 102 is provided on one side of the control chassis 12. An emergency stop button 103 is provided at the front end of the base 11.

[0025] A test space 3 is formed between the control box 12 and the base 11. In a specific implementation, it is preferred that a fence 101 is provided between the control box 12 and the base 11, and the fence 101, the base 11 and the control box 12 enclose the test space 3. The test space 3 is used to place the test product 9 to be tested. A table panel 111 is fixedly provided on the top of the base 11. The top of the table panel 111 is fixedly connected to a positioning seat 13 and a cylinder control valve group 16 located behind the positioning seat 13. A row of test cylinders 14 and a thrust cylinder 17 located behind the row of test cylinders 14 are provided on the positioning seat 13. The thrust cylinder 17 is connected to the test cylinder 14 through a pipeline. One thrust cylinder 17 is connected to one test cylinder 14. The setting of 17 can further increase the pressure of the test cylinder 14. The function of the cylinder control valve group 16 is to control the external system gas to enter and exit each thrust cylinder 17 separately. Specifically, the cylinder control valve group 16 includes a solenoid valve 161 and a manifold 162. The top of the manifold 162 is fixedly connected to a row of solenoid valves 161 corresponding to a row of thrust cylinders 17. An air duct is provided in the manifold 162, and the solenoid valve 161 controls the airflow in the air duct to enter and exit the corresponding thrust cylinder 17.

[0026] Specifically, the positioning base 13 includes a cylinder support base plate 131, a cylinder support side plate 132, and a cylinder fixing plate 133. The cylinder support base plate 131 is fixedly mounted on the upper end surface of the table panel 111. The cylinder fixing plate 133 is arranged above the cylinder support base plate 131 and its two ends are welded to the top of the cylinder support side plate 132 and the cylinder support base plate 131. The test cylinder 14 and the thrust cylinder 17 are both fixedly connected to the bottom of the cylinder fixing plate 133 by bolts. The upper end surface of the cylinder support base plate 131 is provided with a waist-shaped adjustment hole 1311 that is bolted to the table panel 111. The waist-shaped adjustment hole 1311 facilitates fine-tuning of the cylinder support base plate 131 forward and backward. The upper end surface of the table panel 111 is fixedly connected to a limit pin 1112 that abuts against the two ends of the cylinder support base plate 131. The function of the limit pin 1112 is to ensure that the cylinder support base plate 131 is placed in the center.

[0027] The top of the table panel 111 is provided with a support plate 1111 close to the front, and the top of the support plate 1111 is fixed with a product bottom mold 15 and a clamp cylinder 8 located on both sides of the product bottom mold 15. The product bottom mold 15 is used to support and fix the test product 9, and the clamp cylinder 8 is used to press and fix the test product 9 placed on the product bottom mold 15. It should be noted that an insert is provided on the top of the product bottom mold 15, and the test product 9 includes a test component (as shown in the figure) and a row of racks located on the test component. The test component here refers to a structure for locking the rack. In this embodiment, the rack is locked by the gear.

[0028] In this embodiment, the support plate 1111 and the table panel 111 are connected for sliding forward and backward. During implementation, a slideway can be opened on the top of the table panel 111, and then a slider slidably connected to the slideway can be welded at the bottom of the support plate 1111. The bottom of the table panel 111 is fixedly connected to a transmission screw 105, and the bottom of the support plate 1111 is fixedly connected to a transmission block 11111 with a gap passing through the table panel 111. The bottom of the transmission block 11111 is welded with a wire sleeve 106 which is sleeved on the outside of the transmission screw 105. When the transmission screw 105 rotates, it can drive the support plate 1111 to move forward and backward through the wire sleeve 106. This arrangement has the function of facilitating the control of the test product 9 entering and exiting the test space 3, making the loading and unloading operations of the test product 9 more convenient. A control motor can be installed at the bottom of the table panel 111, and the output shaft of the control motor is fixedly connected to one end of the transmission screw 105.

[0029] Working principle: When it is necessary to perform locking force tests on multiple racks in the test product 9 on the product bottom mold 15 at the same time, the control solenoid valve 161 is opened, and the thrust cylinder 17 supplies air to the test cylinder 14. The output shaft of the test cylinder 14 pushes against the racks, and each rack is squeezed individually. The locking force data of each rack will be displayed on the display 1211, thereby realizing simultaneous locking force testing of multiple racks.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. LJ24222 rack locking force testing machine, comprising a machine body (1), characterized in that: The machine body (1) is provided with a base (11) and a control box (12) located above the base (11); a test space (3) is formed between the control box (12) and the base (11); a table panel (111) is fixedly provided on the top of the base (11); a positioning seat (13) and a cylinder control valve group (16) located behind the positioning seat (13) are fixedly connected to the top of the table panel (111); a row of test cylinders (14) and a thrust cylinder (17) located behind the row of test cylinders (14) are provided on the positioning seat (13); a supporting plate (1111) close to the front is provided on the top of the table panel (111); a product bottom mold (15) and clamp cylinders (8) located on both sides of the product bottom mold (15) are fixedly provided on the top of the supporting plate (1111); the product bottom mold (15) is used to support and fix the test product (9).

2. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: The positioning seat (13) includes a cylinder support base plate (131), a cylinder support side plate (132) and a cylinder fixing plate (133); the cylinder support base plate (131) is fixedly mounted on the upper end surface of the table panel (111); the cylinder fixing plate (133) is arranged above the cylinder support base plate (131) and its two ends are welded together through the cylinder support side plate (132) and the top of the cylinder support base plate (131); the test cylinder (14) and the thrust cylinder (17) are fixedly connected to the bottom of the cylinder fixing plate (133) by bolts.

3. The LJ24222 rack locking force testing machine according to claim 2, characterized in that: The upper end surface of the cylinder support base plate (131) is provided with a waist-shaped adjustment hole (1311) connected to the table panel (111) by bolts, and the upper end surface of the table panel (111) is fixedly connected with a limit pin (1112) that abuts against both ends of the cylinder support base plate (131).

4. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: The cylinder control valve group (16) comprises a solenoid valve (161) and a manifold (162), and the top of the manifold (162) is fixedly connected to a row of solenoid valves (161) corresponding to a row of thrust cylinders (17).

5. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: An enclosure (101) is provided between the control cabinet (12) and the base (11), and the enclosure (101), the base (11) and the control cabinet (12) enclose a test space (3).

6. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: A control panel (121) is provided on the front side of the control box (12), a display (1211) is provided on the control panel (121), and a cooling fan (102) is provided on one side of the control box (12).

7. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: An emergency stop button (103) is provided at the front end of the base (11).

8. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: A foot pad (104) is provided at the bottom of the base (11).

9. The LJ24222 rack locking force testing machine according to claim 1, characterized in that: The supporting plate (1111) and the table panel (111) are connected in a forward and backward sliding manner. The bottom of the table panel (111) is fixedly connected with a transmission screw (105). The bottom of the supporting plate (1111) is fixedly connected with a transmission block (11111) with a gap passing through the table panel (111). The bottom of the transmission block (11111) is welded with a thread sleeve (106) that is sleeved on the outside of the transmission screw (105).

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