A tension testing apparatus for a timing chain of an automotive engine

Abstract

The utility model discloses a kind of tensile test equipment of automobile engine timing chain, comprising: transfer assembly, including rack, transfer x-axis drive mechanism and transfer clamping structure;Tensile test assembly, including y-axis guide module, first fixed pulley, counterweight, first translation block, second translation block, gear, displacement sensor and reset y-axis drive mechanism, first translation block and second translation block are connected in y-axis guide module, first translation block is rotatably connected with first sprocket, first translation block is equipped with first rack, second translation block is rotatably connected with second sprocket, second sprocket is equipped with second rack, first rack and second rack are located gear opposite two sides respectively, transmission rope is wound in first fixed pulley, transmission rope is connected in first translation block with one end away from counterweight, reset y-axis drive mechanism is connected with reset push block.The utility model is high in testing efficiency, effectively improve the accuracy and consistency of test operation, and test result is accurate and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain test technical field, especially a kind of tensile test equipment of automobile engine timing chain. BACKGROUND

[0002] Chain is a kind of mechanical transmission chain, it is usually connected by a series of metal rings and annular, for supporting heavy objects, fixed articles, decoration etc., its quality and reliability are directly related to the operating efficiency and safety of equipment, automobile engine timing chain is a kind of chain, is the important component of engine valve train system.

[0003] The tensile strength of chain is an important index reflecting the performance of chain, and the tensile test of chain is used to test the strength of chain, mainly by applying specified tension to chain, and recording the elongation of chain, tensile strength and other data, so as to analyze the performance of chain. The traditional chain tensile test method often adopts manual operation mode for testing, not only low efficiency, but also test result is susceptible to human factors, leading to the accuracy and consistency of test result difficult to guarantee. UTILITY MODEL CONTENT

[0004] The utility model aims at at least one of the technical problems existing in prior art. Therefore, the utility model provides a kind of tensile test equipment of automobile engine timing chain, and artificial cost is low, and test efficiency is high, and tensile test result is accurate and reliable.

[0005] According to the tensile test equipment of automobile engine timing chain of the utility model embodiment, it comprises:

[0006] The transfer assembly comprises a rack, a transfer x-axis driving mechanism and a transfer clamping structure, the transfer x-axis driving mechanism is connected to the rack, the transfer clamping structure is connected to the transfer x-axis driving mechanism, the transfer x-axis driving mechanism is used to drive the transfer clamping structure to move, and the transfer clamping structure is used to clamp chain products;

[0007] The tension test assembly comprises a Y-axis guide module, a first fixed pulley, a counterweight, a first translation block, a second translation block, a gear, a displacement sensor and a reset Y-axis driving mechanism. The Y-axis guide module is located in the projection of the movement track of the transfer clamping structure. The Y-axis guide module and the reset Y-axis driving mechanism are both connected to the rack. The first translation block and the second translation block are both connected to the Y-axis guide module. The gear and the first fixed pulley are both rotatably connected to the rack. The top of the first translation block is rotatably connected with a first sprocket. The bottom of the first translation block is provided with a first rack that is meshingly connected with the gear. The top of the second translation block is rotatably connected with a second sprocket. The bottom of the second translation block is provided with a second rack that is meshingly connected with the gear. The first rack and the second rack are respectively located on opposite sides of the gear. The counterweight is provided with a transmission rope. The transmission rope is wound around the first fixed pulley. The end of the transmission rope away from the counterweight is connected to the first translation block. The first fixed pulley is located on the side of the first translation block away from the second translation block. The displacement sensor is arranged on one side of the first translation block and the second translation block. The displacement sensor is used to measure the relative displacement between the first translation block and the second translation block. The driving end of the reset Y-axis driving mechanism is connected with a reset push block. The reset push block is located on the side of the first translation block away from the second translation block.

[0008] In the embodiment, the tension test assembly further comprises a dial stop driving mechanism and a dial stop block. The dial stop driving mechanism is connected to the rack. The center of the dial stop block is rotatably connected to the rack. One end of the dial stop block is rotatably connected to the dial stop driving mechanism. The other end of the dial stop block is used to block the movement track of the first translation block away from the second translation block.

[0009] In the embodiment, the gear is a helical gear. The first rack and the second rack are both helical racks.

[0010] In the embodiment, the tension test assembly further comprises a second fixed pulley rotatably connected to the rack. The second fixed pulley is located below the first fixed pulley and on the side of the first fixed pulley close to the first translation block. The transmission rope is also wound around the second fixed pulley.

[0011] In the embodiment, the displacement sensor is a grating ruler. The reading head of the grating ruler is connected to the first translation block. The scale of the grating ruler is connected to the second translation block.

[0012] In the embodiment, the reset push block is further connected to the Y-axis guide module.

[0013] In the embodiment, the bottom of the first translation block is provided with a first clearance slot for the gear. The bottom of the second translation block is provided with a second clearance slot for the gear.

[0014] In the embodiment, a recycling box is further arranged on the rack. The recycling box is located on the x-axis direction side of the tension test assembly.

[0015] In the embodiment, the transfer clamping structure comprises a transfer z-axis driving mechanism, two transfer y-axis driving mechanisms and two clamping modules, the two transfer y-axis driving mechanisms are connected to the transfer z-axis driving mechanism, the transfer z-axis driving mechanism is connected to the transfer y-axis driving mechanisms, and the two clamping modules are connected to the two transfer y-axis driving mechanisms.

[0016] The embodiment of the utility model has at least the following beneficial effects:

[0017] Through the cooperative work of the transfer assembly and the tension test assembly, automatic clamping, moving and tension test of the chain are realized, the test efficiency is high, the equipment structure is compact, the operation is simple, the demand for personnel intervention operation is low, the reliability of the test result can be ensured, the labor cost is low; when the counterweight is driven by the transmission rope to move away from the second translation block, the y-axis guide module and the synchronous transmission of the gear and the corresponding rack can drive the second translation block to move away from the first translation block at the same time, ensuring the stable movement and accurate positioning of the first translation block and the second translation block during the test process, thereby effectively improving the accuracy and consistency of the test operation; the displacement sensor can measure the stretching amount of the chain in real time, the tension test precision is high, the test result is accurate and reliable, the weight of the counterweight is changed to adapt to the tension test demand of different chains, the tension test equipment has good scalability and compatibility, and is conducive to integration and linkage with other test equipment; through the reset y-axis driving mechanism and the reset push block, the first translation block and the second translation block can be quickly reset after the test is completed, and the risk of damage of the chain due to long-time stretching can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0019] Figure 1 It is a three-dimensional structure schematic view of the tension test equipment for the automobile engine timing chain of the utility model embodiment;

[0020] Figure 2 It is a three-dimensional structure schematic view of the tension test assembly in the tension test equipment for the automobile engine timing chain of the utility model embodiment;

[0021] Figure 3 It is a structure schematic view of the tension test assembly in the tension test equipment for the automobile engine timing chain of the utility model embodiment when partially cut open;

[0022] Figure 4 It is a three-dimensional structure schematic view of the transfer assembly in the tension test equipment for the automobile engine timing chain of the utility model embodiment.

[0023] REFERENCE NUMERALS:

[0024] The transfer assembly 100, the rack 110, the recycling box 111, the transfer x-axis driving mechanism 120, the transfer z-axis driving mechanism 130, the transfer y-axis driving mechanism 140, the clamping module 150, the y-axis translation plate 160, the guide groove 161, the clamping driving mechanism 170, the push-pull strip 180, the clamping jaw 190, the guide column 191;

[0025] The tension test assembly 200, the y-axis guide module 210, the first fixed pulley 220, the second fixed pulley 221, the counterweight 230, the transmission rope 231, the first translation block 240, the first sprocket 241, the first rack 242, the first displacement slot 243, the second translation block 250, the second sprocket 251, the second rack 252, the second displacement slot 253, the gear 260, the displacement sensor 270, the reset y-axis driving mechanism 280, the reset push block 281, the dial block driving mechanism 290, the dial block 291. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be understood that, if there is a description of the orientation, for example, the orientation or position relationship indicated by up, down, left, right, front, back, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0028] In the description of the present application, if there is a description of a wire sleeve, a support, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0030] Chain is a kind of mechanical transmission chain, usually by a series of metal rings and ring connection, for supporting heavy objects, fixed articles, decoration, its quality and reliability are directly related to the running efficiency and safety of equipment, automobile engine timing chain is a kind of chain, is an important part of engine valve train system.The tensile strength of chain is an important indicator reflecting the performance of chain, chain tension test, also known as tensile test, is used to test the strength of chain, mainly by applying specified tension to chain, and record the elongation of chain, tensile strength and other data, so as to analyze the performance of chain.The traditional chain tensile test method often uses manual operation to test, not only low efficiency, and test results are easily affected by human factors, resulting in the accuracy and consistency of test results are difficult to guarantee.

[0031] In the related art, some simple tensile test equipment is designed, which improves the test efficiency to some extent, but still has many deficiencies.For example, some equipment is difficult to ensure stable clamping and accurate positioning of chain during testing, resulting in inaccurate test results;Some other equipment is complex to operate and has high maintenance cost, which is not conducive to wide application.Therefore, there is an urgent need for a device that can efficiently and accurately test the tensile strength of chain to meet the needs of modern industrial production.

[0032] The following refers to the drawings Figure 1 to the drawings Figure 4 The tensile test device for automobile engine timing chain of the utility model embodiment is described, which has low labor cost, high test efficiency, accurate and reliable tensile test results.

[0033] Referring to Figures 1 to 4 The tensile test device for automobile engine timing chain of the utility model embodiment comprises:

[0034] The transfer assembly 100 comprises a rack 110, a transfer x-axis driving mechanism 120 and a transfer clamping structure, the transfer x-axis driving mechanism 120 is connected to the rack 110, the transfer clamping structure is connected to the transfer x-axis driving mechanism 120, the transfer x-axis driving mechanism 120 is used to drive the transfer clamping structure to move, and the transfer clamping structure is used to clamp the chain product;

[0035] The tension test assembly 200 comprises a y-axis guide module 210, a first fixed pulley 220, a counterweight 230, a first translation block 240, a second translation block 250, a gear 260, a displacement sensor 270 and a reset y-axis driving mechanism 280. The y-axis guide module 210 is located in the projection of the movement track of the transfer clamping structure, so that the transfer clamping structure can transfer the chain product to the first translation block 240 and the second translation block 250 connected to the y-axis guide module 210. The y-axis guide module 210 and the reset y-axis driving mechanism 280 are both connected to the rack 110. The first translation block 240 and the second translation block 250 are distributed along the y-axis direction, and the first translation block 240 and the second translation block 250 are both connected to the y-axis guide module 210. The y-axis guide module 210 is used to limit the movement track of the first translation block 240 and the second translation block 250 to be parallel to the y-axis. The y-axis guide module 210 can be a linear slide rail with a guide direction parallel to the y-axis. The gear 260 and the first fixed pulley 220 are both rotationally connected to the rack 110. The axis of the gear 260 is parallel to the z-axis, and the axis of the first fixed pulley 220 is parallel to the x-axis. The top of the first translation block 240 is rotationally connected with a first sprocket 241, and the bottom of the first translation block 240 is provided with a first rack 242 which is in meshing connection with the gear 260. The top of the second translation block 250 is rotationally connected with a second sprocket 251, and the bottom of the second sprocket 251 is provided with a second rack 252 which is in meshing connection with the gear 260. The first rack 242 and the second rack 252 are respectively located on opposite sides of the gear 260. Through the synchronous transmission of the gear 260, the first rack 242 and the second rack 252 can form a synchronous relative motion in the same direction or in the opposite direction. The counterweight 230 is provided with a transmission rope 231. Preferably, the counterweight 230 can be a weight. The transmission rope 231 is wound outside the first fixed pulley 220. One end of the transmission rope 231 is connected to the counterweight 230, and the other end of the transmission rope 231 away from the counterweight 230 is connected to the first translation block 240. The first fixed pulley 220 is located on the side of the first translation block 240 away from the second translation block 250, so that the counterweight can exert a pulling force on the first translation block 240 to perform tension test. The displacement sensor 270 is arranged on one side of the first translation block 240 and the second translation block 250. The displacement sensor 270 is used to measure the relative displacement between the first translation block 240 and the second translation block 250, and thus measure the stretching amount of the chain product, which can effectively reflect the result of the tension test. The driving end of the reset y-axis driving mechanism 280 is connected with a reset push block 281. The reset push block 281 is located on the side of the first translation block 240 away from the second translation block 250. Through the reset push block 281, the first translation block 240 and the second translation block 250 can be pushed to move closer to each other to realize the reset operation.

[0036] When working, the chain product of the external conveying belt is transferred to the first and second translation blocks 240 and 250 by the transfer assembly 100, and the chain product is wound around the first and second sprockets 241 and 251. Under the action of the gravity of the counterweight 230, the counterweight 230 pulls the first translation block 240 away from the second translation block 250 through the transmission rope 231, and the second translation block 250 moves away from the first translation block 240 at the same speed under the linkage action of the first rack 242, the gear 260 and the second rack 252. The first and second sprockets 241 and 251 straighten the chain product and exert a pulling force on the chain product for testing. The elongation of the chain product can be measured by the displacement sensor 270, which can be used to analyze the performance of the chain product, thereby completing the pulling force test. After the test is completed, the reset y-axis drive mechanism 280 drives the first translation block 240 to move close to the second translation block 250, thereby realizing the reset of the equipment. The first and second sprockets 241 and 251 release the chain product, and the transfer assembly 100 can transfer the chain product.

[0037] Through the cooperative work of the transfer assembly 100 and the pulling force test assembly 200, automatic clamping, moving and pulling force testing of the chain are realized, the testing efficiency is high, the equipment structure is compact, the operation is simple, the demand for personnel intervention operation is low, the reliability of the test results can be ensured, and the labor cost is low. When the counterweight 230 drives the first translation block 240 to move away from the second translation block 250 through the transmission rope 231, the second translation block 250 is simultaneously driven to move away from the first translation block 240 by the y-axis guide module 210 and the synchronous transmission of the gear 260 and the corresponding rack, which ensures the stable movement and accurate positioning of the first and second translation blocks 240 and 250 during the test, thereby effectively improving the accuracy and consistency of the test operation. The displacement sensor 270 can measure the elongation of the chain in real time, the pulling force test precision is high, the test result is accurate and reliable, the weight of the counterweight 230 can be changed to adapt to the pulling force test requirements of different chains, the present pulling force test equipment has good scalability and compatibility, and is conducive to integration and linkage with other test equipment. Through the reset y-axis drive mechanism 280 and the reset push block 281, the first and second translation blocks 240 and 250 can be quickly reset after the test is completed, and the risk of damage to the chain due to long-time stretching can be effectively reduced.

[0038] It can be understood that the pulling force test assembly 200 further comprises a dial stop drive mechanism 290 and a dial stop block 291. The dial stop drive mechanism 290 is connected to the rack 110, the center of the dial stop block 291 is rotationally connected to the rack 110, one end of the dial stop block 291 is rotationally connected to the dial stop drive mechanism 290, and the other end of the dial stop block 291 is used to block the movement track of the first translation block 240 away from the second translation block 250.

[0039] Specifically, the dial driving mechanism 290 is used to drive one end of the dial block 291 to move up and down along the z-axis direction, the dial driving mechanism 290 is arranged below the y-axis guide module 210, which can effectively utilize the longitudinal space for layout, and can effectively reduce the floor area of the device. The rotation axis between the dial block 291 and the rack 110 is parallel to the x-axis.

[0040] In the initial state, the first translation block 240 and the second translation block 250 are arranged side by side, when the dial driving mechanism 290 drives one end of the dial block 291 to descend, the other end of the dial block 291 rises and blocks on the side of the first translation block 240 away from the second translation block 250, thereby limiting the positions of the first translation block 240 and the second translation block 250. At this time, the reset y-axis driving mechanism 280 can drive the reset push plate to move to the side of the first translation block 240 away from the second translation block 250, thereby providing sufficient space for subsequent tensile test; after adjusting the counterweight 230, the dial driving mechanism 290 drives one end of the dial block 291 to rise, and the other end of the dial block 291 descends and reaches below the movement track of the first translation block 240, thereby releasing the first translation block 240 and realizing the tensile test.

[0041] It can be understood that the gear 260 is a helical gear, the first rack 242 and the second rack 252 are both helical racks, and by setting the tooth patterns of the gear 260 and the two racks to be helical, the stability of the meshing connection structure between the gear 260 and the first rack 242 and the second rack 252 can be effectively improved, and the stability of the meshing transmission action can be effectively improved, thereby the accuracy and reliability of the tensile test result can be effectively improved.

[0042] It can be understood that the tensile test assembly 200 further comprises a second fixed pulley 221 rotatably connected to the rack 110, the second fixed pulley 221 is located below the first fixed pulley 220, and the second fixed pulley 221 is located on the side of the first fixed pulley 220 close to the first translation block 240. The transmission rope 231 is also wound around the second fixed pulley 221, and the position of the counterweight 230 can be effectively adjusted through the second fixed pulley 221, so that the counterweight block can be arranged close to the first translation block 240 and the second translation block 250 of the device, and the space utilization can be effectively improved, and the overall device has a compact and reliable structure.

[0043] It can be understood that the displacement sensor 270 is a grating ruler, the reading head of the grating ruler is connected to the first translation block 240, and the scale of the grating ruler is connected to the second translation block 250. The relative position between the first translation block 240 and the second translation block 250 can be directly measured by the grating ruler, which can effectively improve the tensile test precision and test efficiency.

[0044] It can be understood that the reset push block 281 is also connected to the y-axis guide module 210, and the movement track of the reset push block 281 can be effectively limited to be parallel to the y-axis through the y-axis guide module 210, and the reliability of the operation of the whole device can be further improved, and the tension test precision can be effectively improved.

[0045] It can be understood that the gear 260 is located between the first translation block 240 and the second translation block 250, the bottom of the first translation block 240 is provided with a first accommodation groove 243 for accommodating the gear 260, and the first accommodation groove 243 is located on the side of the first translation block 240 close to the second translation block 250, the bottom of the second translation block 250 is provided with a second accommodation groove 253 for accommodating the gear 260, and the second accommodation groove 253 is located on the side of the second translation block 250 close to the first translation block 240, and the gear 260 is accommodated through the first accommodation groove 243 and the second accommodation groove 253, so that the compactness of the device structure can be effectively improved.

[0046] It can be understood that the rack 110 is also provided with a recycling box 111, and the recycling box 111 is located on the x-axis direction side of the tension test assembly 200, and the unqualified chain products are recycled through the recycling box 111, so as to facilitate the repair or scrap.

[0047] It can be understood that the transfer clamping structure includes a transfer z-axis driving mechanism 130, two transfer y-axis driving mechanisms 140 and two clamping modules 150, the two transfer y-axis driving mechanisms 140 are connected to the transfer z-axis driving mechanism 130, and the driving tracks of the two transfer y-axis driving mechanisms 140 are collinear, the transfer z-axis driving mechanism 130 is connected to the transfer y-axis driving mechanism 140, and the two clamping modules 150 are connected to the two transfer y-axis driving mechanisms 140, respectively, the clamping module 150 is used for clamping the straight chain product, and the transfer chain product can be matched.

[0048] It can be understood that the clamping module 150 includes a y-axis translation plate 160, a clamping drive mechanism 170, a push-pull strip 180 and two clamping jaws 190, the y-axis translation plate 160 is connected to the transfer y-axis drive mechanism 140, the clamping drive mechanism 170 is connected to the y-axis translation plate 160, the push-pull strip 180 is connected to the clamping drive mechanism 170, the push-pull strip 180 is parallel to the y-axis, the y-axis translation plate 160 is provided with two guide grooves 161 located on both sides of the push-pull strip 180, the two guide grooves 161 are symmetrical about the push-pull strip 180, one end of each clamping jaw 190 is rotatably connected to the push-pull strip 180, the middle part of each clamping jaw 190 is provided with a guide column 191, the two guide columns 191 are respectively slidably connected in the two guide grooves 161, and each guide groove 161 is curved away from the push-pull strip 180 in the direction of the x-axis. The guide groove 161 is used for driving the other end of the clamping jaw 190 to rotate away from the push-pull strip 180 in the x-axis direction, so that the other end of the clamping jaw 190 drives the chain product to be clamped and tightened.

[0049] Among them, the transfer x-axis drive mechanism 120, the transfer z-axis drive mechanism 130, the transfer y-axis drive mechanism 140 and the clamping drive mechanism 170 can be set as electric cylinders, air cylinders and other positioning mechanisms capable of realizing linear driving. The chain product is clamped in the form of the clamping jaw 190 opening to the x-axis direction, which can provide space for the tightening of the first sprocket 241 and the second sprocket 251, and can effectively improve the continuity and reliability of the overall equipment operation.

[0050] Specifically, the other end of the clamping jaw 190 is provided with an anti-skid positioning column, the anti-skid positioning column is used for clamping the chain product outwardly, and the surface of the anti-skid positioning column is formed with an anti-skid layer, which can effectively improve the positioning effect of the chain product.

[0051] It can be understood that the transfer clamping structure is provided with two, and the transfer efficiency can be effectively improved by the two transfer clamping structures, thereby improving the working efficiency of the overall equipment.

[0052] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A tensile testing device for automobile engine timing chain, characterized in that, include: The transfer assembly (100) includes a frame (110), a transfer x-axis drive mechanism (120), and a transfer clamping structure. The transfer x-axis drive mechanism (120) is connected to the frame (110), and the transfer clamping structure is connected to the transfer x-axis drive mechanism (120). The transfer x-axis drive mechanism (120) is used to drive the transfer clamping structure to move, and the transfer clamping structure is used to clamp chain products. The tensile testing assembly (200) includes a y-axis guide module (210), a first fixed pulley (220), a counterweight (230), a first translation block (240), a second translation block (250), a gear (260), a displacement sensor (270), and a reset y-axis drive mechanism (280). The y-axis guide module (210) is located in the projection of the motion trajectory of the transfer clamping structure. Both the y-axis guide module (210) and the reset y-axis drive mechanism (280) are connected to the frame (110). The first translation block (240)... Both the first translation block (240) and the second translation block (250) are connected to the y-axis guide module (210). The gear (260) and the first fixed pulley (220) are rotatably connected to the frame (110). The top of the first translation block (240) is rotatably connected to a first sprocket (241). The bottom of the first translation block (240) is provided with a first rack (242) that meshes with the gear (260). The top of the second translation block (250) is rotatably connected to a second sprocket (251). The bottom of the second sprocket (251) is... The part is provided with a second rack (252) that meshes with the gear (260). The first rack (242) and the second rack (252) are respectively located on opposite sides of the gear (260). The counterweight (230) is provided with a transmission rope (231). The transmission rope (231) is wound around the first fixed pulley (220). The end of the transmission rope (231) away from the counterweight (230) is connected to the first translation block (240). The first fixed pulley (220) is located on the first translation block (240). On the side away from the second translation block (250), the displacement sensor (270) is disposed on the side of the first translation block (240) and the second translation block (250). The displacement sensor (270) is used to measure the relative displacement between the first translation block (240) and the second translation block (250). The drive end of the reset y-axis drive mechanism (280) is connected to a reset push block (281). The reset push block (281) is located on the side of the first translation block (240) away from the second translation block (250).

2. The tensile testing equipment for automobile engine timing chain according to claim 1, characterized in that, The tensile testing assembly (200) further includes a shift drive mechanism (290) and a shift block (291). The shift drive mechanism (290) is connected to the frame (110). The center of the shift block (291) is rotatably connected to the frame (110). One end of the shift block (291) is rotatably connected to the shift drive mechanism (290). The other end of the shift block (291) is used to block the movement trajectory of the first translation block (240) away from the second translation block (250).

3. The tensile testing equipment for automobile engine timing chain according to claim 1, characterized in that, The gear (260) is a helical gear, and both the first rack (242) and the second rack (252) are helical racks.

4. The tensile testing device for an automotive engine timing chain according to claim 1, characterized in that, The tensile testing assembly (200) further includes a second fixed pulley (221) rotatably connected to the frame (110). The second fixed pulley (221) is located below the first fixed pulley (220) and is located on the side of the first fixed pulley (220) closer to the first translation block (240). The transmission rope (231) is also wound around the second fixed pulley (221).

5. The tensile testing device for an automotive engine timing chain according to claim 1, characterized in that, The displacement sensor (270) is a grating ruler, the reading head of the grating ruler is connected to the first translation block (240), and the scale of the grating ruler is connected to the second translation block (250).

6. The tensile testing device for an automotive engine timing chain according to claim 1, characterized in that, The reset pusher (281) is also connected to the y-axis guide module (210).

7. The tensile testing device for an automobile engine timing chain according to claim 1, characterized in that, The bottom of the first translation block (240) is provided with a first clearance groove (243) for making way for the gear (260), and the bottom of the second translation block (250) is provided with a second clearance groove (253) for making way for the gear (260).

8. The tensile testing device for an automotive engine timing chain according to claim 1, characterized in that, The frame (110) is also provided with a recycling box (111), which is located on the x-axis side of the tensile testing assembly (200).

9. The tensile testing device for an automobile engine timing chain according to claim 1, characterized in that, The transfer clamping structure includes a transfer z-axis drive mechanism (130), two transfer y-axis drive mechanisms (140), and two clamping modules (150). The two transfer y-axis drive mechanisms (140) are all connected to the transfer z-axis drive mechanism (130), and the two clamping modules (150) are respectively connected to the two transfer y-axis drive mechanisms (140).

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