Worm size precision detection device

Abstract

The invention relates to the technical field of worm measurement, in particular to a worm size precision detection device which comprises a mounting plate, two assembly blocks are fixedly connected to the upper end of the mounting plate, air cylinders are fixedly connected to the ends, close to each other, of the two assembly blocks, and mounting blocks are fixedly connected to the upper ends of the two assembly blocks. The worm is placed between the two assembling blocks and arranged in the middle, then the two air cylinders are started, piston rods arranged in the two air cylinders are made to get close to the middle, the worm in the middle is gradually clamped through the clamping rods, and when the clamping rods get close gradually, the marking needles can be driven to get close gradually; the measuring value of the worm can be obtained by reading the value, marked by the marking needle, on the marking plate, and through the design, measuring and clamping of the worm are more integrated, and the detecting and clamping efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of worm gear measurement technology, specifically a precision worm gear dimension detection device. Background Technology

[0002] As a key component of worm gear transmission, the precision of the worm directly affects the transmission efficiency, smoothness, noise, and service life. Therefore, worms often need to be inspected before use. Worm measurement is a crucial step in ensuring its manufacturing quality, involving the testing of multiple geometric parameters and meshing performance.

[0003] This includes worm gear tooth thickness measurement: the position of the worm gear tooth thickness tolerance zone is generally based on the deviation in tooth thickness. For worm gears with a precision grade of 69, the tooth thickness tolerance (Ts1) value varies depending on the module (m). Worm gear tooth thickness is typically measured using tooth thickness calipers. During measurement, the measuring surface of the tooth thickness calipers must be perpendicular to the worm gear tooth surface, and the normal tooth thickness on the pitch cylinder surface of the worm gear must be measured.

[0004] Center distance measurement: The limit deviation of the center distance (a) has a significant impact on the accuracy of worm gear transmissions. According to GB / T10089-2018, for transmissions with medium precision (grade 79), when the center distance a = 80-125 mm, the limit deviation is ±0.0315 mm; when a = 125-180 mm, the limit deviation is ±0.0355 mm. The center distance can be measured using an inside micrometer or a dedicated center distance measuring instrument. During measurement, it is necessary to ensure that the measuring tool is in accurate contact with the mounting reference of the worm and worm gear.

[0005] Helix Tolerance Inspection: The worm helix tolerance (FhI) is used to control the shape error of the worm helix. For a worm with a precision grade of 7, when the worm pitch circle diameter d1 = 831.5 mm and the axial module ma = 13.5 mm, the helix tolerance FHL is 0.028 mm. The helix error is usually detected using a worm helix measuring instrument. By comparing the actual helix with a standard helix, the error value of the actual helix is ​​obtained.

[0006] Currently, when inspecting the dimensions of worm gears using testing equipment, it is necessary to clamp and fix them first before performing the corresponding testing. However, the existing clamping and testing are two different devices and mechanisms. In use, clamping must be performed first before testing, which increases the number of steps and affects the testing speed and efficiency of worm gears. Summary of the Invention

[0007] The purpose of this invention is to provide a precision worm gear size detection device to solve the problem of insufficient integration of worm gear detection and clamping in the prior art mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A precision measuring device for worm gear dimensions includes a mounting plate. Two assembly blocks are fixedly connected to the upper end of the mounting plate. Cylinders are fixedly connected to the adjacent ends of the two assembly blocks. Mounting blocks are fixedly connected to the upper ends of the two assembly blocks. A horizontal rod is fixedly connected to the adjacent ends of the two mounting blocks. Two clamping rods are slidably connected to the circumferential surface of the horizontal rod. The two clamping rods are respectively fixedly connected to the piston ends of the two cylinders, and a detection probe is fixedly connected to one end of each clamping rod.

[0009] Furthermore, a label plate is fixedly connected to one end of each of the two mounting blocks, and a label pin is fixedly connected to one end of each of the two clamping rods.

[0010] Furthermore, a protective frame is fixedly connected to the upper end of the mounting plate, and a support frame is fixedly connected to the lower end of the mounting plate.

[0011] Furthermore, one end of the support frame is fixedly connected to multiple storage cabinets, and the lower end of the support frame is fixedly connected to multiple support legs.

[0012] Furthermore, each of the multiple support legs is fixedly connected to a support plate at its lower end, and the diameter of each of the multiple support plates is larger than the diameter of the multiple support legs.

[0013] Furthermore, a suspension rod is fixedly connected to one end of the protective frame, and an operation panel is fixedly connected to the lower end of the suspension rod.

[0014] Furthermore, the upper end of the mounting plate is fixedly connected to multiple support rods and two placement blocks. The upper end of the two placement blocks is provided with a workpiece to be measured. Multiple positioning plates are fixedly connected to the circumferential surface of the workpiece to be measured. The multiple positioning plates are respectively located on both sides of the two placement blocks. The upper end of the multiple support rods is fixedly connected to a top plate. The lower side of the top plate is provided with two sets of fixing mechanisms. Each set of fixing mechanisms consists of a movable hole, a plug rod, a spring, a force plate, and a backing plate. The movable hole is opened at the upper end of the top plate. The plug rod is slidably connected in the movable hole. The force plate and the backing plate are respectively fixedly connected to the upper and lower ends of the plug rod. The spring is sleeved on the circumferential surface of the plug rod.

[0015] Furthermore, two anti-rotation grooves are formed on the inner circumference of the movable hole, and two anti-rotation blocks are fixedly connected to the circumferential surface of the plug rod. The two anti-rotation blocks are slidably connected in the two anti-rotation grooves respectively.

[0016] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. When clamping and measuring the worm gear, place the worm gear between two assembly blocks and center it. Then, activate the two cylinders to move the piston rods inside the cylinders closer to the center, gradually clamping the worm gear through the clamping rod. As the clamping rod moves closer, it also moves the marking needle closer. After clamping, read the value on the marking plate marked by the marking needle to obtain the measurement value of the worm gear. This design makes the measurement and clamping of the worm gear more integrated, improving the efficiency of detection and clamping.

[0017] Second, the support frame can support the mounting plate and the multiple components set on it. The support feet and support plate fixedly connected to the lower end of the support frame can increase the stability of the device when it is placed.

[0018] 3. When it is necessary to inspect the workpiece to be measured, it needs to be placed on the upper end of the two placement blocks. Then, the elastic pull of the spring will pull the force plate down, and then pull the plug rod down, so that the abutment plate abuts against the circumferential surface of the workpiece to be measured, stabilizing the workpiece and preventing it from falling off during processing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a rear perspective view of the present invention; Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a front perspective view of the present invention; Figure 4 This is a partial side view of the present invention; Figure 5 This is a partial front view of the present invention; Figure 6 This is a partial main sectional view of the present invention.

[0021] In the diagram: 1. Support frame; 101. Storage cabinet; 102. Support plate; 103. Mounting plate; 104. Protective frame; 105. Suspension rod; 106. Operation panel; 2. Assembly block; 201. Cylinder; 202. Clamping rod; 203. Detection probe; 204. Mounting block; 205. Horizontal bar; 206. Outer diameter probe; 207. Marking needle; 208. Marking plate; 3. Support rod; 301. Top plate; 302. Force plate; 303. Spring; 304. Connecting rod; 305. Placement block; 306. Positioning plate; 307. Workpiece to be measured; 308. Abutment plate; 309. Anti-rotation groove; 310. Anti-rotation block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The present invention will be further described below with reference to embodiments.

[0024] Please see Figure 1-6 The present invention provides the following technical solutions: A precision measuring device for worm gear dimensions, comprising: Mounting plate 103, with two assembly blocks 2 fixedly connected to the upper end of mounting plate 103. Cylinders 201 are fixedly connected to the adjacent ends of the two assembly blocks 2. Mounting blocks 204 are fixedly connected to the upper end of the two assembly blocks 2. Horizontal rods 205 are fixedly connected to the adjacent ends of the two mounting blocks 204. Two clamping rods 202 are slidably connected to the circumferential surface of the horizontal rods 205. The two clamping rods 202 are fixedly connected to the piston ends of the two cylinders 201 respectively, and a detection probe 203 is fixedly connected to one end of each clamping rod 202. One end of each of the two mounting blocks 204 is fixedly connected to a label plate 208, and one end of each of the two clamping rods 202 is fixedly connected to a label pin 207.

[0025] In a specific embodiment of the present invention, when the worm gear needs to be inspected and clamped, the worm gear is placed between two assembly blocks 2 and positioned centrally. Then, two cylinders 201 are activated, causing the piston ends of the cylinders 201 to move closer to the center. Subsequently, two clamping rods 202 move closer to the center, clamping and positioning the worm gear. Then, the outer diameter of the worm gear is measured by the detection probe 203. Simultaneously, as the clamping rods 202 move, they slide synchronously on the circumferential surface of the horizontal rod 205, thereby driving the marking needle 207 to move on one side of the marking plate 208. When the clamping rods 202 stop, the outer diameter of the worm gear can be inspected again by the scale indicated by the marking needle 207. Through the above design, the clamping and inspection of the worm gear are more integrated, increasing the inspection efficiency.

[0026] Preferably, an outer diameter probe 206 is also provided at the close ends of the two assembly blocks 2. The outer diameter probe 206 moves with the movement of the cylinder 201. By contacting the circumferential surface of the worm with the outer diameter probe 206, the outer diameter dimension of the worm can be further detected.

[0027] Please refer to the details. Figure 2 The upper end of the mounting plate 103 is fixedly connected to a protective frame 104, and the lower end of the mounting plate 103 is fixedly connected to a support frame 1. One end of the support frame 1 is fixedly connected to multiple storage cabinets 101, and the lower end of the support frame 1 is fixedly connected to multiple support feet.

[0028] In this embodiment: the protective frame 104 can protect multiple components to a certain extent, the support frame 1 can support multiple components, the multiple storage cabinets 101 can store tools, etc., and the multiple support feet can improve the placement stability of the device.

[0029] Please refer to the details. Figure 2 The lower ends of multiple support feet are fixedly connected to support plates 102, and the diameter of the multiple support plates 102 is larger than the diameter of the multiple support feet. One end of the protective frame 104 is fixedly connected to a suspension rod 105, and the lower end of the suspension rod 105 is fixedly connected to an operation panel 106.

[0030] In this embodiment: the contact area between the support foot and the ground can be increased by multiple support plates 102, thereby increasing friction and placement stability. The operation panel 106 is suspended by the suspension rod 105, and the cylinder 201 can be controlled by touch through the operation panel 106.

[0031] Please refer to the details. Figure 5-6The upper end of the mounting plate 103 is fixedly connected to multiple support rods 3 and two placement blocks 305. The upper end of the two placement blocks 305 is provided with a workpiece 307 to be measured. Multiple positioning plates 306 are fixedly connected to the circumferential surface of the workpiece 307 to be measured. The multiple positioning plates 306 are respectively located on both sides of the two placement blocks 305. The upper end of the multiple support rods 3 is fixedly connected to a top plate 301. Two sets of fixing mechanisms are provided on the lower side of the top plate 301. Each set of fixing mechanisms consists of a movable hole, a plug rod 304, a spring 303, and a bearing. The device consists of a force plate 302 and a backing plate 308. A movable hole is opened at the upper end of the top plate 301. A plug rod 304 is slidably connected in the movable hole. The force plate 302 and the backing plate 308 are respectively fixedly connected to the upper and lower ends of the plug rod 304. A spring 303 is sleeved on the circumferential surface of the plug rod 304. Two anti-rotation grooves 309 are opened on the inner circumferential wall of the movable hole. Two anti-rotation blocks 310 are fixedly connected to the circumferential surface of the plug rod 304. The two anti-rotation blocks 310 are slidably connected in the two anti-rotation grooves 309 respectively.

[0032] In this embodiment: when the workpiece 307 to be measured needs to be processed, it needs to be placed on the upper end of the two placement blocks 305, and then the two positioning plates 306 are placed on both sides of the two placement blocks 305 respectively for position adjustment and calibration. The elastic pull of the two springs 303 pulls the force plate 302 down, and at the same time drives the plug rod 304 down to move it down in the movable hole, so that the abutment plate 308 abuts against the circumferential surface of the workpiece 307 to be measured, stabilizing the workpiece 307 to be measured on the upper side of the placement block 305, so that it will not accidentally fall off during processing. When the plug rod 304 moves, it will drive the two anti-rotation blocks 310 to slide in the two anti-rotation grooves 309, improving the vertical movement stability of the plug rod 304 and preventing it from rotating.

[0033] The working principle and usage process of this invention are as follows: When the worm gear needs to be inspected and clamped, it is placed between two assembly blocks 2 and centered. Then, the two cylinders 201 are activated, causing the piston ends of the cylinders 201 to move closer to the center. The two clamping rods 202 then move closer to the center, clamping and positioning the worm gear. The outer diameter of the worm gear is then measured using the detection probe 203. Simultaneously, as the clamping rods 202 move, they slide on the circumferential surface of the horizontal rod 205, thereby moving the marking needle 207 to one side of the marking plate 208. When the clamping rods 202 stop... The outer diameter of the worm can be checked again by the scale indicated by the marking needle 207. The protective frame 104 can protect multiple components. The support frame 1 can support multiple components. Multiple storage cabinets 101 can store tools, etc. Multiple support feet can improve the placement stability of the device. Multiple support plates 102 can increase the contact area between the support feet and the ground, thereby increasing friction and placement stability. The control panel 106 is suspended by the suspension rod 105, and the cylinder 201 can be controlled by touch through the control panel 106.

[0034] As described above, when the worm gear needs to be clamped and measured, the present invention places the worm gear between two assembly blocks and centers it. Then, the two cylinders are activated, causing the piston rods inside the two cylinders to move closer to the center and gradually clamp the worm gear through the clamping rod. As the clamping rod moves closer, it also moves the marking needle closer. After clamping is completed, the value on the marking plate marked by the marking needle is read to obtain the measurement value of the worm gear. Through the above design, the measurement and clamping of the worm gear are more integrated, improving the detection and clamping efficiency.

[0035] Meanwhile, the present invention uses a support frame to support the mounting plate and multiple components mounted on it. The support feet and support plate fixedly connected to the lower end of the support frame enhance the stability of the device during placement. When the workpiece to be measured needs to be inspected, it is placed on top of the two placement blocks. Then, the elastic pull of the spring pulls the force plate downwards, which in turn pulls the connecting rod downwards, causing the abutment plate to press against the circumferential surface of the workpiece, stabilizing the workpiece and preventing it from detaching during processing.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for precision measurement of the dimensions of a worm, comprising a mounting plate (103), characterised in that: The upper end of the mounting plate (103) is fixedly connected to two assembly blocks (2), and cylinders (201) are fixedly connected to the adjacent ends of the two assembly blocks (2). The upper end of the two assembly blocks (2) is fixedly connected to a mounting block (204), and horizontal rods (205) are fixedly connected to the adjacent ends of the two mounting blocks (204). Two clamping rods (202) are slidably connected to the circumferential surface of the horizontal rods (205). The two clamping rods (202) are fixedly connected to the piston ends of the two cylinders (201) respectively, and a detection probe (203) is fixedly connected to one end of each clamping rod (202).

2. The device for precise measurement of the size of a worm according to claim 1, characterized in that: One end of each of the two mounting blocks (204) is fixedly connected to a label plate (208), and one end of each of the two clamping rods (202) is fixedly connected to a label pin (207).

3. The device for precise measurement of the size of a worm according to claim 1, characterized in that: The upper end of the mounting plate (103) is fixedly connected to a protective frame (104), and the lower end of the mounting plate (103) is fixedly connected to a support frame (1).

4. The device for precise measurement of the size of a worm according to claim 1, characterized in that: One end of the support frame (1) is fixedly connected to a plurality of storage cabinets (101), and the lower end of the support frame (1) is fixedly connected to a plurality of support legs.

5. The device for precise measurement of the size of a worm according to claim 1, characterized in that: Each of the multiple support feet has a support plate (102) fixedly connected to its lower end, and the diameter of the multiple support plates (102) is larger than the diameter of the multiple support feet.

6. The device for precise measurement of the size of a worm according to claim 1, characterized in that: One end of the protective frame (104) is fixedly connected to a suspension rod (105), and the lower end of the suspension rod (105) is fixedly connected to an operation panel (106).

7. The device for precise measurement of the size of a worm according to claim 1, characterized in that: The upper end of the mounting plate (103) is fixedly connected to multiple support rods (3) and two placement blocks (305). The upper end of the two placement blocks (305) is provided with a workpiece (307) to be measured. Multiple positioning plates (306) are fixedly connected to the circumferential surface of the workpiece (307). The multiple positioning plates (306) are respectively located on both sides of the two placement blocks (305). The upper end of the multiple support rods (3) is fixedly connected to a top plate (301). The top plate (301) is located below... Two sets of fixing mechanisms are provided on the side. Each set of fixing mechanisms consists of a movable hole, a plug rod (304), a spring (303), a force plate (302), and a backing plate (308). The movable hole is opened at the upper end of the top plate (301). The plug rod (304) is slidably connected in the movable hole. The force plate (302) and the backing plate (308) are fixedly connected to the upper and lower ends of the plug rod (304), respectively. The spring (303) is sleeved on the circumferential surface of the plug rod (304).

8. The device for precise measurement of the size of a worm according to claim 1, characterized in that: The inner circumferential wall of the movable hole has two anti-rotation grooves (309), and the circumferential surface of the plug rod (304) is fixedly connected to two anti-rotation blocks (310), and the two anti-rotation blocks (310) are slidably connected in the two anti-rotation grooves (309).

Images