Cross-rod distance detection device

Abstract

The invention relates to the technical field of gear detection devices, in particular to a cross-rod distance detection device. The cross-rod distance detection device comprises a base, a dial indicator, a carrying table, a fixed measuring rod, a swing rod assembly and a movable measuring rod, the carrying table is arranged on the base and used for carrying a gear, and the fixed measuring rod is arranged on the base and can be clamped in a tooth groove of the gear located on the carrying table. A micrometric screw of the dial indicator is connected with the swing rod assembly. The swing rod assembly is movably arranged on the base and is in transmission connection with the two movable measuring rods, so that the movable measuring rods have clamping positions far away from the fixed measuring rod and detection positions close to the fixed measuring rod. When the movable measuring rod is located at the clamping position, the gear can be placed on or moved out of the carrying table. When the movable measuring rods are located at the detection positions, the two movable measuring rods are clamped in different tooth grooves in the gear respectively. The cross-rod distance detection device provided by the invention can detect the cross-rod distance of the non-full-tooth gear, the detection cost is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gear detection devices, and in particular to a cross-bar distance detection device. Background Art

[0002] In the production and processing of gears, the span is a measurement index that reflects the pitch circle tooth thickness of the gear. The span of the gear is measured by the measuring rod method to control the gear tooth thickness and avoid positioning errors. However, for toothed parts with special tooth shapes, such as non-full-tooth toothed parts, the span of the gear cannot be directly measured by the measuring rod method. The use of professional gear measuring devices or three-dimensional measuring instruments not only has high testing costs, but also takes a long time and has low efficiency, and is not suitable for large-scale testing of gears. Summary of the invention

[0003] The object of the present invention is to provide a cross-bar pitch detection device to improve the detection efficiency of the cross-bar pitch of a non-full-tooth gear and reduce the detection cost.

[0004] To achieve this purpose, the technical solution adopted by the present invention is:

[0005] The cross-rod distance detection device comprises a base, a micrometer, a carrier and a fixed measuring rod, wherein the carrier is arranged on the base and used to carry the gear, and the fixed measuring rod is arranged on the base and can be clamped in the tooth groove of the gear located on the carrier;

[0006] The cross-rod distance detection device also includes a swing rod assembly and a mobile measuring rod, and the micrometer screw of the micrometer is connected to the swing rod assembly; the swing rod assembly is movably arranged on the base and is transmission-connected with the two mobile measuring rods, so that the mobile measuring rod has a clamping position away from the fixed measuring rod and a detection position close to the fixed measuring rod;

[0007] When the movable measuring rod is located at the clamping position, the gear can be placed on or moved out of the carrier; when the movable measuring rod is located at the detection position, the two movable measuring rods are respectively engaged in different tooth grooves on the gear.

[0008] As an optional solution, the swing rod assembly includes:

[0009] A lever, pivotally connected to the base, one end of which is provided with the movable measuring rod, and the micrometer screw is connected to the lever;

[0010] A connecting rod is pivotally connected to the base, and another movable measuring rod is provided at one end of the connecting rod; the shift rod is transmission-connected to the other end of the connecting rod so that when the shift rod is pressed, it can rotate relative to the base and drive the connecting rod to rotate synchronously, thereby driving the two movable measuring rods to move to the clamping position.

[0011] As an optional solution, the swing rod assembly further includes:

[0012] A first guide block, disposed on the base and having a first guide hole;

[0013] A push rod movably passes through the first guide hole, one end of the push rod is connected to or abuts against the shift rod, and the other end of the push rod is connected to or abuts against the other end of the connecting rod; the shift rod drives the connecting rod to rotate synchronously through the push rod;

[0014] A first elastic member is disposed between the first guide block and the shifting rod, and the first elastic member is configured to have a tendency to drive the shifting rod to rotate and to make the movable measuring rod on the shifting rod clamp the gear.

[0015] As an optional solution, the rocker arm assembly also includes a second guide block, which is arranged on the base and adjacent to the connecting rod; the second guide block is provided with a second guide hole coaxial with the first guide hole, and the other end of the top rod can move through the second guide hole.

[0016] As an optional solution, the first guide block is arranged adjacent to the shift rod, and the micrometer is mounted on the first guide block.

[0017] As an optional solution, the connecting rod includes a first rod and a second rod connected in an L-shape, the first rod and the second rod are pivotally connected to the base at the connection point, the end of the first rod away from the second rod is connected to or abuts the top rod, and the movable measuring rod is provided at the end of the second rod away from the first rod.

[0018] As an optional solution, the swing rod assembly further includes:

[0019] A support block, disposed on the base;

[0020] A second elastic member is disposed between the support block and the second rod, and the second elastic member is configured to have a tendency to drive the connecting rod to rotate and to make the moving measuring rod on the connecting rod clamp the gear.

[0021] As an optional solution, the platform is provided with at least two avoidance grooves at intervals along the circumferential direction, and the avoidance grooves pass through both ends of the platform in the height direction; the movable measuring rod passes through the corresponding avoidance grooves and protrudes from the upper surface of the platform.

[0022] As an optional solution, the cross-rod distance detection device further includes a base, the base is arranged on the base, and the carrier is arranged on the base;

[0023] The carrier is provided with three avoidance grooves, one end of the fixed measuring rod is arranged on the base, and the other end of the fixed measuring rod passes through the corresponding avoidance groove and protrudes from the upper surface of the carrier.

[0024] As an optional solution, the carrier is provided with a clearance hole, and the clearance hole can avoid the hub of the gear.

[0025] The beneficial effects of the present invention are:

[0026] The cross-bar distance detection device proposed by the present invention has a rocker assembly that drives the mobile measuring rod to move to the clamping position, so that the gear is placed on the carrier, and the fixed measuring rod is clamped in the tooth groove of the gear. Then the rocker assembly drives the mobile measuring rod to move to the detection position, and the two mobile measuring rods are respectively clamped in different tooth grooves on the gear, so that the fixed measuring rod and the two mobile measuring rods are clamped together in different tooth grooves on the gear. The micrometer screw of the micrometer is connected to the rocker assembly to detect the cross-bar distance of the gear. There is no need to use professional gear measuring devices or three-dimensional measuring instruments and other equipment, which reduces the detection cost. At the same time, it makes the detection operation of the cross-bar distance of the gear (especially the gear with non-full teeth) simple and improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a cross-rod distance detection device for placing gears provided in an embodiment of the present invention;

[0028] Figure 2 is a structural schematic diagram of a cross-rod distance detection device provided in an embodiment of the present invention;

[0029] Figure 3 It is a schematic structural diagram of a cross-rod distance detection device without a carrier provided in an embodiment of the present invention.

[0030] The names and numbers of the components in the figure are as follows:

[0031] 100, gear; 101, tooth groove;

[0032] 1. Base; 2. Micrometer; 21. Micrometer screw; 3. Carrier; 31. Avoidance groove; 32. Make way hole; 4. Fixed measuring rod; 5. Mobile measuring rod; 6. Push rod; 7. Connecting rod; 71. First rod; 72. Second rod; 8. First guide block; 9. Push rod; 10. First elastic member; 11. Second guide block; 12. Support block; 13. Second elastic member; 14. Base. DETAILED DESCRIPTION

[0033] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] In gear production and processing, the span is a measurement index that reflects the pitch circle tooth thickness of the gear. The span of the gear is measured by the measuring rod method to control the gear tooth thickness and avoid positioning errors. The measurement method for the span of the gear with full teeth is an existing technology and will not be repeated here.

[0039] For toothed parts with special tooth shapes, such as non-full toothed parts (such as Figure 1The gear 100 in the embodiment has three tooth grooves 101 arranged at equal intervals in the circumferential profile of the gear 100, and the span distance cannot be directly measured by the measuring rod method. If a professional gear measuring device or a three-dimensional measuring instrument is used, not only the detection cost is high, but also the detection time is long and the efficiency is low, which is not suitable for the large-scale detection needs of gears.

[0040] To solve the above problems, Figure 1-2 As shown, this embodiment proposes a cross-rod distance detection device, which includes a base 1, a micrometer 2, a carrier 3, a fixed measuring rod 4, a rocker assembly and a mobile measuring rod 5. The carrier 3 is arranged on the base 1 and is used to carry the gear 100. The fixed measuring rod 4 is arranged on the base 1 and can be clamped in the tooth groove 101 of the gear 100 located on the carrier 3. The micrometer screw 21 of the micrometer 2 is connected to the rocker assembly. The rocker assembly is movably arranged on the base 1 and is transmission-connected with the two mobile measuring rods 5, so that the mobile measuring rod 5 has a clamping position away from the fixed measuring rod 4 and a detection position close to the fixed measuring rod 4. When the mobile measuring rod 5 is at the clamping position, the gear 100 can be placed on or moved out of the carrier 3. When the mobile measuring rod 5 is at the detection position, the two mobile measuring rods 5 are respectively clamped in different tooth grooves 101 on the gear 100.

[0041] Specifically, Figure 1 and Figure 3 As shown, the rocker assembly includes a lever 6 and a connecting rod 7. The lever 6 is pivotally connected to the base 1. A movable measuring rod 5 is arranged at one end of the lever 6. The micrometer screw 21 is connected to the lever 6. The connecting rod 7 is pivotally connected to the base 1. Another movable measuring rod 5 is arranged at one end of the connecting rod 7. The lever 6 is transmission-connected to the other end of the connecting rod 7 so that the lever 6 can rotate relative to the base 1 and drive the connecting rod 7 to rotate synchronously when pressed, so as to drive the two movable measuring rods 5 to move to the clamping position. That is, the synchronous rotation of the two movable measuring rods 5 can be achieved by simply pressing the lever 6. The operation is simple and easy, which is conducive to improving the detection efficiency.

[0042] In this embodiment, the lever 6 and the connecting rod 7 are both pivotally mounted on the base 1, so that the lever 6 and the connecting rod 7 can rotate relative to the base 1. Figure 2 Press one end of the lever 6 in the direction indicated by the middle arrow, so that the lever 6 moves along Figure 2 The connecting rod 7 rotates in the direction indicated by the arrow, and at the same time drives the connecting rod 7 along Figure 2 The two movable measuring rods 5 rotate synchronously in the direction indicated by the middle arrow, so that the two movable measuring rods 5 rotate along with their corresponding levers 6 and connecting rods 7 respectively, and move away from the fixed measuring rod 4, thereby increasing the diameter of the same virtual circle where the fixed measuring rod 4 and the two movable measuring rods 5 are located, so as to facilitate the placement of the gear 100 to be measured on the carrier 3.

[0043] like Figure 1 to Figure 3As shown, the rocker assembly further includes a first guide block 8, a push rod 9 and a first elastic member 10. The first guide block 8 is arranged on the base 1 and has a first guide hole. The push rod 9 moves through the first guide hole. One end of the push rod 9 is connected or abutted with the lever 6, and the other end of the push rod 9 is connected or abutted with the other end of the connecting rod 7. The lever 6 drives the connecting rod 7 to rotate synchronously through the push rod 9. The first elastic member 10 is arranged between the first guide block 8 and the lever 6. The first elastic member 10 is configured to have a tendency to drive the lever 6 to rotate and to clamp the gear 100 on the moving measuring rod 5 on the lever 6. By providing the first guide block 8, the push rod 9 can move axially along the first guide hole to achieve axial limitation of the push rod 9. One end of the push rod 9 in this embodiment is pressed against the lever 6. In other embodiments, one end of the push rod 9 can also be hingedly connected to the lever 6, so that when the lever 6 rotates, the push rod 9 can be driven to move along the first guide hole.

[0044] It should be noted that the first elastic member 10 is a spring and is sleeved on the top rod 9. The spring has a simple structure and is easy to install. Figure 2 The first elastic member 10 is rotated in the direction indicated by the arrow in the middle, and the first elastic member 10 is compressed. When the pressing force on the lever 6 is removed, the first elastic member 10 applies an elastic restoring force (similar to the elastic force of the lever 6) to the lever 6. Figure 2 and rotate the lever 6 in the opposite direction (in the opposite direction to the direction indicated by the arrow of the pressing force in the Figure 2 The first elastic member 10 is used to rotate the movable measuring rod 5 on the lever 6 in the opposite direction to the direction indicated by the rotation arrow in the figure) to drive the movable measuring rod 5 on the lever 6 to rotate synchronously, and the movable measuring rod 5 approaches the fixed measuring rod 4 until the movable detection position, at which time the movable measuring rod 5 clamps the gear 100 on the carrier 3. The elastic restoring force of the first elastic member 10 is applied to the movable measuring rod 5 on the lever 6 through the lever action of the lever 6, so that the movable measuring rod 5 on the lever 6 always has a tendency to remain at the detection position. The first elastic member 10 can also be a spring sheet or elastic rubber, etc., which are not listed here one by one.

[0045] like Figure 1 to Figure 3 As shown, the rocker assembly further includes a second guide block 11, which is disposed on the base 1 and adjacent to the connecting rod 7. The second guide block 11 is provided with a second guide hole coaxial with the first guide hole, and the other end of the push rod 9 movably passes through the second guide hole. By providing the second guide block 11, the end of the push rod 9 close to the connecting rod 7 is guided and limited to avoid positional deviation of the end of the push rod 9 close to the connecting rod 7, so as to ensure that the push rod 9 always reciprocates along its own axial direction.

[0046] Furthermore, the first guide block 8 is arranged adjacent to the lever 6, and the micrometer 2 is mounted on the first guide block 8. The micrometer 2 and the push rod 9 share the same guide block, which not only realizes the stable installation of the micrometer 2, but also does not require an additional installation structure of the micrometer 2, thereby improving the compactness of the cross-rod distance detection device.

[0047] like Figure 3 As shown, the connecting rod 7 includes a first rod 71 and a second rod 72 connected in an L shape, the connection between the first rod 71 and the second rod 72 is pivotally connected to the base 1, the end of the first rod 71 away from the second rod 72 is connected to or abuts the top rod 9, and the end of the second rod 72 away from the first rod 71 is provided with a movable measuring rod 5. By setting the connecting rod 7 in an L shape, the single-side length of the connecting rod 7 is shortened, and the area swept during the rotation of the connecting rod 7 is reduced, thereby reducing the installation space of the connecting rod 7 and improving the compactness of the cross-rod distance detection device. The other end of the top rod 9 of this embodiment is tightly against the first rod 71. In other embodiments, the other end of the top rod 9 can also be hingedly connected to the first rod 71.

[0048] When along Figure 2 When one end of the lever 6 is pressed in the direction indicated by the middle arrow, the lever 6 pushes the top rod 9 to move along the axial direction of the top rod 9, so that the top rod 9 pushes the connecting rod 7 along the Figure 2 The connecting rod 7 rotates in the direction indicated by the middle arrow, and at the same time drives the movable measuring rod 5 on the connecting rod 7 to rotate synchronously in the direction away from the fixed measuring rod 4 and rotate to the clamping position.

[0049] like Figure 3 As shown, the swing rod assembly also includes a support block 12 and a second elastic member 13. The support block 12 is arranged on the base 1. The second elastic member 13 is arranged between the support block 12 and the second rod 72. The second elastic member 13 is configured to have a tendency to drive the connecting rod 7 to rotate and make the moving measuring rod 5 on the connecting rod 7 clamp the gear 100. The second elastic member 13 is a spring and is compressed and installed between the support block 12 and the second rod 72. The spring has a simple structure and is easy to install. When the connecting rod 7 is pushed by the top rod 9 along Figure 2 When the connecting rod 7 rotates in the direction indicated by the middle arrow, the second elastic member 13 is compressed. When the pressing force on the lever 6 is removed, the second elastic member 13 applies an elastic restoring force to the second rod 72 and causes the connecting rod 7 to rotate in the opposite direction (with the connecting rod 7 rotating in the opposite direction). Figure 2 6), so as to drive the mobile measuring rod 5 on the second rod 72 to rotate synchronously and make the mobile measuring rod 5 approach the fixed measuring rod 4 until it moves to the detection position. At this time, the mobile measuring rod 5 on the second rod 72 and the mobile measuring rod 5 on the lever 6 jointly clamp the gear 100 on the carrier 3. At the same time, when the lever 6 rotates in the opposite direction, it can push the top rod 9 to reset and make the top rod 9 close to the lever 6. The elastic restoring force of the second elastic member 13 is applied to the mobile measuring rod 5 on the second rod 72 through the second rod 72, so that the mobile measuring rod 5 on the second rod 72 always has a tendency to remain in the detection position. The second elastic member 13 can also be a spring sheet or elastic rubber, etc., which are not listed here one by one.

[0050] like Figure 2 and Figure 3As shown, at least two avoidance grooves 31 are arranged at intervals along the circumferential direction of the carrier 3, and the avoidance grooves 31 pass through both ends of the carrier 3 in the height direction. The movable measuring rod 5 passes through the corresponding avoidance grooves 31 and protrudes from the upper surface of the carrier 3. The lever 6 and the connecting rod 7 of this embodiment are both located below the carrier 3 to avoid interfering with the pick-up and placement operation of the gear 100 on the carrier 3. One end of the two movable measuring rods 5 extends out of the carrier 3 from the corresponding avoidance grooves 31 so as to be snapped into the tooth groove 101 of the gear 100 on the carrier 3.

[0051] It should be noted that the carrier 3 is a circular ring structure, the avoidance groove 31 extends along the radial direction of the carrier 3, and the mobile measuring rod 5 can move in the avoidance groove 31 and switch between the clamping position and the detection position. When the two mobile measuring rods 5 are located at the detection position, the same virtual circle where the three measuring rods are located is concentric with the carrier 3. In addition, the carrier 3 is provided with a clearance hole 32, which can avoid the hub of the gear 100 so that the gear 100 can be placed flatly on the upper surface of the carrier 3.

[0052] Specifically, the cross-rod distance detection device also includes a base 14, which is arranged on the base 1, and the platform 3 is arranged on the base 1. The platform 3 is provided with three avoidance grooves 31, one end of the fixed measuring rod 4 is arranged on the base 14, and the other end of the fixed measuring rod 4 passes through the corresponding avoidance groove 31 and protrudes from the upper surface of the platform 3. By setting the base 1, the height of the platform 3 is raised, so that a space for accommodating the lever 6 and the connecting rod 7 is formed between the platform 3 and the base 1. At the same time, three avoidance grooves 31 are opened on the platform 3, and the fixed measuring rod 4 is installed on the base 14, so that the three measuring rods pass through the corresponding avoidance grooves 31 one by one.

[0053] For ease of understanding, the steps of measuring the span distance of the gear 100 by the span distance detection device of this embodiment are as follows:

[0054] Step S1, manually or by applying a force tool along Figure 2 Press one end of the lever 6 in the direction indicated by the middle arrow, so that the lever 6 moves along Figure 2 The connecting rod 7 rotates in the direction indicated by the arrow in the middle, and the connecting rod 7 rotates synchronously in the direction indicated by the arrow in the middle by pushing the top rod 9 to move, so that the two moving measuring rods 5 move away from the fixed measuring rod 4 and move to the clamping position, and a standard gear is placed on the carrier 3, and the fixed measuring rod 4 is clamped in a tooth groove on the standard gear. It should be noted that the standard gear refers to a high-precision standard part, and the cross-rod distance is marked on the standard gear.

[0055] Step S2, the pressing force is removed, and under the action of the first elastic member 10 and the second elastic member 13, the lever 6 and the connecting rod 7 rotate in the opposite direction (with the first elastic member 10 and the second elastic member 13). Figure 2The push rod 9 is reset, and the two movable measuring rods 5 are synchronously rotated and moved to the measuring position, so that the two movable measuring rods 5 are respectively engaged in two different tooth grooves on the standard gear, thereby clamping the standard gear on the carrier 3 through the three measuring rods. At this time, the micrometer 2 measures a reference value of the standard gear through the lever 6.

[0056] Step S3, adjusting the micrometer 2 to zero.

[0057] Step S4, repeating step S1, moving the standard gear out of the carrier 3 and placing the gear 100 to be measured on the carrier 3, repeating step S2 and reading the value of the micrometer 2.

[0058] According to the value measured by the micrometer 2 in step S4 and the standard value of the standard gear, the span of the gear 100 to be tested is calculated by adding and subtracting the value. Alternatively, according to the value measured by the micrometer 2 in step S4, it is checked whether it falls within the qualified size range of the span of the gear 100 to determine whether the gear 100 to be tested is qualified.

[0059] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cross-rod distance detection device, characterized in that: The invention comprises a base (1), a micrometer (2), a carrier (3) and a fixed measuring rod (4), wherein the carrier (3) is arranged on the base (1) and is used to carry a gear (100), and the fixed measuring rod (4) is arranged on the base (1) and can be clamped in a tooth groove (101) of the gear (100) located on the carrier (3); The cross-rod distance detection device also includes a swing rod assembly and a mobile measuring rod (5), and the micrometer screw (21) of the micrometer (2) is connected to the swing rod assembly; the swing rod assembly is movably arranged on the base (1) and is transmission-connected to the two mobile measuring rods (5), so that the mobile measuring rod (5) has a clamping position away from the fixed measuring rod (4) and a detection position close to the fixed measuring rod (4); When the movable measuring rod (5) is located at the clamping position, the gear (100) can be placed on or removed from the carrier (3); when the movable measuring rod (5) is located at the detection position, the two movable measuring rods (5) are respectively engaged in different tooth grooves (101) on the gear (100).

2. The cross-rod distance detection device according to claim 1, characterized in that: The swing rod assembly comprises: A lever (6) is pivotally connected to the base (1), one end of the lever (6) is provided with the movable measuring rod (5), and the micrometer screw (21) is connected to the lever (6); A connecting rod (7) is pivotally connected to the base (1), and another movable measuring rod (5) is arranged at one end of the connecting rod (7); the shifting rod (6) is transmission-connected to the other end of the connecting rod (7), so that when the shifting rod (6) is pressed, it can rotate relative to the base (1) and drive the connecting rod (7) to rotate synchronously, so as to drive the two movable measuring rods (5) to move to the clamping position.

3. The cross-rod distance detection device according to claim 2, characterized in that: The swing arm assembly also includes: A first guide block (8) is arranged on the base (1) and is provided with a first guide hole; A push rod (9) movably passes through the first guide hole, one end of the push rod (9) is connected to or abuts against the shift rod (6), and the other end of the push rod (9) is connected to or abuts against the other end of the connecting rod (7); the shift rod (6) drives the connecting rod (7) to rotate synchronously through the push rod (9); A first elastic member (10) is arranged between the first guide block (8) and the shifting rod (6), and the first elastic member (10) is configured to have a tendency to drive the shifting rod (6) to rotate and to cause the movable measuring rod (5) on the shifting rod (6) to clamp the gear (100).

4. The cross-rod distance detection device according to claim 3, characterized in that: The rocker assembly further comprises a second guide block (11), the second guide block (11) being arranged on the base (1) and adjacent to the connecting rod (7); the second guide block (11) is provided with a second guide hole coaxial with the first guide hole, and the other end of the push rod (9) is movably passed through the second guide hole.

5. The cross-rod distance detection device according to claim 3, characterized in that: The first guide block (8) is arranged adjacent to the shifting rod (6), and the micrometer (2) is mounted on the first guide block (8).

6. The cross-rod distance detection device according to claim 3, characterized in that: The connecting rod (7) comprises a first rod (71) and a second rod (72) connected in an L shape, wherein the connection between the first rod (71) and the second rod (72) is pivotally connected to the base (1), an end of the first rod (71) away from the second rod (72) is connected to or abuts against the top rod (9), and an end of the second rod (72) away from the first rod (71) is provided with the movable measuring rod (5).

7. The cross-rod distance detection device according to claim 6, characterized in that: The swing arm assembly also includes: A support block (12) is arranged on the base (1); A second elastic member (13) is disposed between the support block (12) and the second rod (72), and the second elastic member (13) is configured to have a tendency to drive the connecting rod (7) to rotate and to cause the movable measuring rod (5) on the connecting rod (7) to clamp the gear (100).

8. The cross-rod distance detection device according to any one of claims 1 to 7, characterized in that: The carrier (3) is provided with at least two avoidance grooves (31) at intervals along the circumferential direction, and the avoidance grooves (31) run through both ends of the carrier (3) in the height direction; the movable measuring rod (5) passes through the corresponding avoidance grooves (31) and protrudes from the upper surface of the carrier (3).

9. The cross-rod distance detection device according to claim 8, characterized in that: The cross-rod distance detection device further comprises a base (14), wherein the base (14) is arranged on the base (1), and the carrier (3) is arranged on the base (1); The carrier (3) is provided with three avoidance grooves (31), one end of the fixed measuring rod (4) is arranged on the base (14), and the other end of the fixed measuring rod (4) passes through the corresponding avoidance grooves (31) and protrudes from the upper surface of the carrier (3).

10. The cross-rod distance detection device according to claim 8, characterized in that: The carrier (3) is provided with a clearance hole (32), and the clearance hole (32) can avoid the hub of the gear (100).

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