Automatic clamp structure for detecting size of shifting fork

Abstract

The utility model belongs to the technical field of clamp design, and particularly relates to an automatic clamp structure for detecting the size of a shifting fork. According to the automatic clamp structure for detecting the size of the gear shifting fork, through reasonable arrangement of the bottom plate supporting assembly, the positioning assembly, the clamping assembly and the product identification assembly, rapid and reliable clamping of a gear shifting fork product can be realized, the accuracy of product size detection can be effectively improved, the detection efficiency is improved, and the production cost is reduced. The labor cost is saved; the device is compact in overall structure, is convenient and flexible to use, is suitable for the batch detection of shift fork products, and can provide a theoretical basis for the design of an automatic clamp for the batch production of subsequent different products.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixture design, and in particular relates to an automatic fixture structure for detecting the size of a shift fork. Background Art

[0002] The shift fork is a key component of a car's transmission. Its slider is connected to the shift handle and is used for clutch shifting. The shift fork precisely fits between the shift handle and the slider, so the position and dimensions of the shift fork slider are crucial factors in ensuring accurate and comfortable shifting. To ensure product dimensional accuracy and traceability during mass production, each shift fork product must be inspected. Existing production lines typically use three-coordinate (X, Y, and Z) measuring equipment to inspect the shift fork's dimensions.

[0003] In actual production, in order to improve the flexible detection efficiency and accuracy of three-dimensional coordinate measuring equipment, it is necessary to develop a set of automated inspection fixtures that match the three-dimensional coordinate measuring machine for online inspection of shift fork products in mass production, and provide a theoretical basis for the design of automated fixtures for subsequent mass production of different products. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide an automated fixture structure for shift fork size detection, which has a compact structure, is easy and flexible to use, and has reliable clamping. It can effectively improve the accuracy of product size detection, improve detection efficiency, save labor costs, and is suitable for batch detection of products.

[0005] The technical solutions adopted by the present invention to solve the above technical problems are:

[0006] An automated fixture structure for shift fork size detection, mainly comprising: a base plate support component, a positioning component, a clamping component, and a product identification component;

[0007] The base plate support assembly includes a base plate 5, a left cylinder mounting block 6 is mounted on the left side of the upper end surface of the base plate 5, and an L-shaped supporting block 9 and a right cylinder mounting block 10 are symmetrically mounted on the right side of the upper end surface of the base plate 5;

[0008] The positioning assembly includes an AB reference positioning shaft 2 and a D reference positioning block 8 mounted on the middle part of the upper end surface of the base plate 5, and a C reference positioning block 13 mounted on the inner side of the L-shaped support block 9. The middle cylindrical portion of the shift fork 16 to be tested is sleeved on the AB reference positioning shaft 2, and the bottom of the fork surface of the shift fork 16 to be tested is supported on the D reference positioning block 8, and the side surface of the fork leg is placed on the C reference positioning block 13.

[0009] The clamping assembly includes a rotary cylinder 7 mounted on the left cylinder mounting block 6 and a linear cylinder 15 mounted on the right cylinder mounting block 10. The rotary cylinder 7 is connected to a swing arm 1. A rubber pressure head 3 is mounted on the end of the swing arm 1. The rubber pressure head 3 is used to cooperate with the D reference positioning block 8 to press the fork surface of the shift fork to be tested 16. The linear cylinder 15 is connected to a cap nut 14. The cap nut 14 is used to cooperate with the C reference positioning block 13 to press the side of the shift fork leg.

[0010] The product identification component includes a sensor mounting base 4 and an IO module cover 11 installed on the upper end surface of the base plate 5. The sensor mounting base 4 is equipped with a beam-type photoelectric switch 12 for detecting whether the shift fork 16 to be tested is placed on the positioning component. The IO module cover 11 is provided with an IO module, and the beam-type photoelectric switch 12, the rotary cylinder 7 and the linear cylinder 15 are all electrically connected to the IO module.

[0011] Furthermore, the AB reference positioning shaft 2 and the D reference positioning block 8 are both fixedly mounted on the middle portion of the upper end surface of the base plate 5 , and the size of the AB reference positioning shaft 2 is adapted to the inner diameter of the middle cylinder of the shift fork 16 to be tested.

[0012] Furthermore, the distance between the D reference positioning block 8 and the AB reference positioning axis 2 is adapted to the fork surface size of the shift fork 16 to be tested, and the height of the D reference positioning block 8 is adapted to the bottom height of the fork surface of the shift fork 16 to be tested.

[0013] Furthermore, the left cylinder mounting block 6 is fixedly mounted on the left side of the upper end surface of the base plate 5 , and the mounting positions of the L-shaped support block 9 and the right cylinder mounting block 10 match the right end position of the fork surface of the shift fork 16 to be tested.

[0014] Furthermore, the rotary cylinder 7 is fixedly installed vertically above the left cylinder mounting block 6 , and the rotary cylinder 7 is used to drive the swing arm 1 to drive the rubber pressure head 3 to rotate to just above the fork surface of the shift fork 16 to be tested.

[0015] Furthermore, the rubber pressure head 3 is fixedly installed below the end of the swing arm 1, and the installation height of the rubber pressure head 3 is adapted to the height of the top of the fork surface of the shift fork 16 to be tested.

[0016] Furthermore, the linear cylinder 15 is fixedly installed on the outer side of the right cylinder mounting block 10 in the transverse direction, and the output end of the linear cylinder 15 passes through the right cylinder mounting block 10 and is connected to the cap nut 14. The linear cylinder 15 is used to drive the cap nut 14 to move toward the C reference positioning block 13 to tighten the right end of the fork surface of the shift fork 16 to be tested.

[0017] Furthermore, the transmitting module and the receiving module of the opposing photoelectric switch 12 are respectively mounted on two sensor mounting seats 4 , and the two sensor mounting seats 4 are symmetrically mounted behind the AB reference positioning axis 2 .

[0018] Compared with the prior art, the present invention has the following main advantages:

[0019] 1. This utility model provides an automated fixture structure for shift fork size detection. Through the rational arrangement of the base plate support assembly, positioning assembly, clamping assembly, and product identification assembly, the shift fork product can be quickly and reliably clamped, effectively improving the accuracy of product size detection, increasing detection efficiency, and saving labor costs.

[0020] 2. The utility model has a compact overall structure and is easy and flexible to use. It is suitable for batch testing of shift fork products and can provide a theoretical basis for the design of automated fixtures for subsequent mass production of different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an overall schematic diagram of an automated fixture structure for detecting the size of a shift fork according to the present invention;

[0022] Figure 2 This is a front view of an automated fixture structure for detecting the size of a shift fork according to the present invention;

[0023] Figure 3 The utility model is a top view of an automated fixture structure for detecting the size of a shift fork.

[0024] In the figure: 1-swing arm, 2-AB reference positioning shaft, 3-rubber pressure head, 4-sensor mounting seat, 5-base plate, 6-left cylinder mounting block, 7-rotating cylinder, 8-D reference positioning block, 9-L-shaped support block, 10-right cylinder mounting block, 11-IO module cover, 12-opposing photoelectric switch, 13-C reference positioning block, 14-cover nut, 15-linear cylinder, 16-shift fork to be tested. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as a limitation on this application.

[0029] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0030] Embodiment 1: This embodiment provides an automated fixture structure for detecting the size of a shift fork. Figures 1 to 3 As shown, it mainly includes: base plate support assembly, positioning assembly, clamping assembly, product identification assembly;

[0031] The base plate support assembly includes a base plate 5, a left cylinder mounting block 6 is mounted on the left side of the upper end surface of the base plate 5, and an L-shaped supporting block 9 and a right cylinder mounting block 10 are symmetrically mounted on the right side of the upper end surface of the base plate 5;

[0032] The positioning assembly includes an AB reference positioning shaft 2 and a D reference positioning block 8 mounted on the middle part of the upper end surface of the base plate 5, and a C reference positioning block 13 mounted on the inner side of the L-shaped support block 9. The middle cylindrical portion of the shift fork 16 to be tested is sleeved on the AB reference positioning shaft 2, and the bottom of the fork surface of the shift fork 16 to be tested is supported on the D reference positioning block 8, and the side surface of the fork leg is placed on the C reference positioning block 13.

[0033] The clamping assembly includes a rotary cylinder 7 mounted on the left cylinder mounting block 6 and a linear cylinder 15 mounted on the right cylinder mounting block 10. The rotary cylinder 7 is connected to a swing arm 1. A rubber pressure head 3 is mounted on the end of the swing arm 1. The rubber pressure head 3 is used to cooperate with the D reference positioning block 8 to press the fork surface of the shift fork to be tested 16. The linear cylinder 15 is connected to a cap nut 14. The cap nut 14 is used to cooperate with the C reference positioning block 13 to press the side of the shift fork leg.

[0034] The product identification component includes a sensor mounting base 4 and an IO module cover 11 installed on the upper end surface of the base plate 5. The sensor mounting base 4 is equipped with a beam-type photoelectric switch 12 for detecting whether the shift fork 16 to be tested is placed on the positioning component. The IO module cover 11 is provided with an IO module, and the beam-type photoelectric switch 12, the rotary cylinder 7 and the linear cylinder 15 are all electrically connected to the IO module.

[0035] Furthermore, the AB reference positioning shaft 2 and the D reference positioning block 8 are both fixedly mounted on the middle portion of the upper end surface of the base plate 5 , and the size of the AB reference positioning shaft 2 is adapted to the inner diameter of the middle cylinder of the shift fork 16 to be tested.

[0036] Furthermore, the distance between the D reference positioning block 8 and the AB reference positioning axis 2 is adapted to the fork surface size of the shift fork 16 to be tested, and the height of the D reference positioning block 8 is adapted to the bottom height of the fork surface of the shift fork 16 to be tested.

[0037] Furthermore, the left cylinder mounting block 6 is fixedly mounted on the left side of the upper end surface of the base plate 5 , and the mounting positions of the L-shaped support block 9 and the right cylinder mounting block 10 match the right end position of the fork surface of the shift fork 16 to be tested.

[0038] Furthermore, the rotary cylinder 7 is fixedly installed vertically above the left cylinder mounting block 6 , and the rotary cylinder 7 is used to drive the swing arm 1 to drive the rubber pressure head 3 to rotate to just above the fork surface of the shift fork 16 to be tested.

[0039] Furthermore, the rubber pressure head 3 is fixedly installed below the end of the swing arm 1, and the installation height of the rubber pressure head 3 is adapted to the height of the top of the fork surface of the shift fork 16 to be tested.

[0040] Furthermore, the linear cylinder 15 is fixedly installed on the outer side of the right cylinder mounting block 10 in the transverse direction, and the output end of the linear cylinder 15 passes through the right cylinder mounting block 10 and is connected to the cap nut 14. The linear cylinder 15 is used to drive the cap nut 14 to move toward the C reference positioning block 13 to tighten the right end of the fork surface of the shift fork 16 to be tested.

[0041] Furthermore, the transmitting module and the receiving module of the opposing photoelectric switch 12 are respectively mounted on two sensor mounting seats 4 , and the two sensor mounting seats 4 are symmetrically mounted behind the AB reference positioning axis 2 .

[0042] Example 2. This embodiment provides an automated fixture structure for detecting the size of a shift fork. The base plate support assembly is used to support and position the positioning element and the clamping element. The opposing photoelectric switch and the wireless IO module are installed on the base plate. The rotary cylinder is used to press the shift fork, and the linear cylinder is used to align and clamp the parts.

[0043] Furthermore, the AB reference positioning axis is used to limit the movement of the fork in the X and Y axis directions and the rotation in the X and Y axis directions, the C reference arc block is used to cooperate with the cap nut to limit the rotation of the fork in the Z axis direction, and the D reference block is used to cooperate with the rubber pressure head to limit the movement of the fork in the Z axis direction.

[0044] Furthermore, the rotary cylinder is used to compress the movement of the shift fork in the Z-axis direction, and the linear cylinder is used to align and clamp the shift fork.

[0045] Furthermore, the beam-type photoelectric switch is used to detect the presence of parts, and the wireless IO module is used for signal transmission.

[0046] Furthermore, the L-shaped support block is used to install the C-reference positioning block. The centering of the parts between the L-shaped support block and the C-reference positioning block can be adjusted by a gasket, and the wear of the C-reference positioning block can also be compensated.

[0047] When used specifically:

[0048] The central cylinder of the shift fork part to be tested is placed on the AB reference positioning axis of the fixture structure. The opposing photoelectric switch will detect the presence of the part, and the linear cylinder will drive the cap nut to push out to align and clamp the part. After the swing arm of the rotary cylinder rotates 90°, the rubber pressure head will press the part to complete the automatic clamping of the part. When the parts are clamped in place, the operator starts the production line and sends the automated fixture to the three-coordinate measurement station. After arriving at the measurement station, the three-coordinate measurement machine will call the specified detection program to take point measurements, and the collected data will be processed and output in a report.

[0049] Furthermore, all parts of this application that are not described in detail are the same as the existing technology or are implemented using the existing technology.

[0050] In summary:

[0051] 1. This utility model provides an automated fixture structure for shift fork size detection. Through the rational arrangement of the base plate support assembly, positioning assembly, clamping assembly, and product identification assembly, the shift fork product can be quickly and reliably clamped, effectively improving the accuracy of product size detection, increasing detection efficiency, and saving labor costs.

[0052] 2. The utility model has a compact overall structure and is easy and flexible to use. It is suitable for batch testing of shift fork products and can provide a theoretical basis for the design of automated fixtures for subsequent mass production of different products.

[0053] The above embodiments are intended only to illustrate the design concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of protection of the present invention is not limited to the above embodiments. Therefore, any equivalent changes or modifications based on the principles and design concepts disclosed in the present invention are within the scope of protection of the present invention.

Claims

1. An automated fixture structure for shift fork size detection, characterized by: Including base plate support assembly, positioning assembly, clamping assembly, product identification assembly; The base plate support assembly comprises a base plate (5), a left cylinder mounting block (6) is mounted on the left side of the upper end surface of the base plate (5), and an L-shaped supporting block (9) and a right cylinder mounting block (10) are symmetrically mounted on the right side of the upper end surface of the base plate (5); The positioning assembly comprises an AB reference positioning shaft (2) and a D reference positioning block (8) mounted on the middle portion of the upper end surface of the base plate (5), and a C reference positioning block (13) mounted on the inner side surface of the L-shaped support block (9); the middle cylinder of the shift fork (16) to be tested is sleeved on the AB reference positioning shaft (2), and the bottom of the shift fork surface of the shift fork (16) to be tested is supported on the D reference positioning block (8), and the side surface of the shift fork leg is supported on the C reference positioning block (13); The clamping assembly includes a rotary cylinder (7) mounted on the left cylinder mounting block (6) and a linear cylinder (15) mounted on the right cylinder mounting block (10), the rotary cylinder (7) is connected to a swing arm (1), a rubber pressure head (3) is mounted on the end of the swing arm (1), the rubber pressure head (3) is used to cooperate with the D reference positioning block (8) to press the fork surface of the shift fork (16) to be tested, and the linear cylinder (15) is connected to a cap nut (14), the cap nut (14) is used to cooperate with the C reference positioning block (13) to press the side of the fork leg of the shift fork; The product identification component includes a sensor mounting seat (4) and an IO module cover (11) mounted on the upper end surface of the base plate (5); a beam-type photoelectric switch (12) for detecting whether a shift fork (16) to be tested is placed on the positioning component is mounted on the sensor mounting seat (4); an IO module is arranged in the IO module cover (11); and the beam-type photoelectric switch (12), the rotary cylinder (7) and the linear cylinder (15) are all electrically connected to the IO module.

2. The automated fixture structure for shift fork size detection according to claim 1, characterized in that: The AB reference positioning shaft (2) and the D reference positioning block (8) are both fixedly mounted on the middle portion of the upper end surface of the base plate (5), and the size of the AB reference positioning shaft (2) is adapted to the inner diameter of the middle cylinder of the shift fork (16) to be tested.

3. The automated fixture structure for shift fork size detection according to claim 2, characterized in that: The distance between the D reference positioning block (8) and the AB reference positioning axis (2) is adapted to the size of the fork surface of the shift fork (16) to be tested, and the height of the D reference positioning block (8) is adapted to the bottom height of the fork surface of the shift fork (16) to be tested.

4. The automated fixture structure for shift fork size detection according to claim 1, characterized in that: The left cylinder mounting block (6) is fixedly mounted on the left side of the upper end surface of the base plate (5), and the mounting positions of the L-shaped support block (9) and the right cylinder mounting block (10) are adapted to the right end position of the fork surface of the shift fork (16) to be tested.

5. The automated fixture structure for shift fork size detection according to claim 1, characterized in that: The rotary cylinder (7) is fixedly mounted vertically above the left cylinder mounting block (6), and the rotary cylinder (7) is used to drive the swing arm (1) to drive the rubber pressure head (3) to rotate to the position directly above the fork surface of the shift fork (16) to be tested.

6. The automated fixture structure for shift fork size detection according to claim 5, characterized in that: The rubber pressure head (3) is fixedly installed below the end of the swing arm (1), and the installation height of the rubber pressure head (3) is adapted to the height of the top of the fork surface of the shift fork (16) to be tested.

7. The automated fixture structure for shift fork size detection according to claim 1, characterized in that: The linear cylinder (15) is fixedly mounted on the outer side of the right cylinder mounting block (10) in the transverse direction, and the output end of the linear cylinder (15) passes through the right cylinder mounting block (10) and is connected to the cap nut (14). The linear cylinder (15) is used to drive the cap nut (14) to move toward the C reference positioning block (13) to press the right end of the fork surface of the shift fork (16) to be tested.

8. The automated fixture structure for shift fork size detection according to claim 1, characterized in that: The transmitting module and receiving module of the opposing photoelectric switch (12) are respectively mounted on two sensor mounting seats (4), and the two sensor mounting seats (4) are symmetrically mounted behind the AB reference positioning axis (2).

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