Limit angle simulation measurement clamp for rod connection structure

Abstract

The invention discloses a rod connecting structure limit angle simulation measurement clamp which comprises a base, the base is provided with a clamping structure used for clamping a base rod to enable the base rod to be located in the horizontal direction and a double-hole seat, and the axes of two holes formed in the double-hole seat coincide with the axis of a deflection pin when the deflection pin deflects to the left limit position and the right limit position around a rotating shaft. The detection pin can pass through a hole on the double-hole seat to be inserted into a blind hole of a section of the deflection pin far away from the base rod. The clamp is high in detection efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of angle simulation measurement, and in particular relates to a limit angle simulation measurement fixture for a rod connection structure. Background Art

[0002] In the actual engineering of mechanical manufacturing, the traditional standard process parts transmission can overcome the technical problems of real transmission of certain lengths and angles that are not easy to handle by digital display measurement, three-coordinate integrated measurement platform, laser measuring instrument, traditional manual metering and even multifunctional mechanical arm and other measurement technologies. For example, a rod connection structure is composed of a base rod 1, a yaw pin 2, and a rotating shaft 3, wherein the tilting arm at the right end of the base rod 1 is embedded in the tail groove on the yaw pin 2, and the yaw pin 2 can rotate forward and backward relative to the base rod 1 through the rotating shaft 3. The pitch direction of the yaw pin 2 and the base rod 1 form an elevation angle λ, and the left and right yaw angles are α=2, β=α / 2, and γ=α / 2. When the yaw pin 2 moves relative to the base rod 1 through the rotating shaft 3, no interference is allowed at any place. Among them, the base rod 1, the yaw pin 2, and the rotating shaft 3 have tolerance changes during manufacturing. The actual curves, straight lines and arcs in production and manufacturing cannot be smoothly connected. In short, the efficiency of the above-mentioned various measurement technologies cannot reach the ideal state, and the required measurement equipment is expensive, and the specific actual value after measurement is not directly converted. Summary of the invention

[0003] Purpose of the Invention

[0004] In order to solve the above technical problems, the present invention provides a rod connection structure limit angle simulation measurement fixture.

[0005] Inventing technical solutions

[0006] A rod connection structure extreme angle simulation measurement fixture comprises a base, on which a clamping structure and a double-eye seat for clamping a base rod so that the base rod is located in a horizontal direction are arranged, the axes of two holes opened on the double-eye seat respectively coincide with the axes of the deflection pin when the deflection pin deflects to the left and right extreme positions around the rotation axis, and the detection pin can pass through the hole on the double-eye seat and be inserted into a blind hole of the deflection pin away from the base rod.

[0007] Preferably, clamping structures are provided at two locations on the base.

[0008] Preferably, the clamping structure includes a positioning seat connected to the base, and the positioning seat and the rotary pressure plate form a clamp capable of clamping the base rod.

[0009] Preferably, the positioning seat and the rotary pressure plate together form a circular hole that can clamp the base rod. The positioning seat is hinged to one end of the rotary pressure plate, and the other end is connected by a live bolt and then locked by a nut. The live bolt and the positioning seat are connected by a cylindrical pin.

[0010] Preferably, the detection pin is clearance-matched with the hole on the binocular seat.

[0011] Preferably, the double-eye seat is fixed by a quick-change bolt, the outer thread sleeve in the quick-change bolt is arranged on the double-eye seat, the inner thread sleeve is arranged on the hexagonal screw, the inner thread sleeve and the outer thread sleeve are connected by threads, the spring washer is arranged between the hexagonal screw and the inner thread sleeve, the lower part of the hexagonal screw is arranged on the base, and the rotation of the double-eye seat is limited by a cylindrical pin.

[0012] Preferably, the positioning seat is connected to the base through screws and cylindrical pins.

[0013] Preferably, one end of the detection pin away from the deflection pin is connected to a handle, and the handle has a step for axially limiting the detection pin.

[0014] Preferably, the base is a grid structure.

[0015] The advantages of the present invention are as follows: the simulation measuring fixture is based on the transmission of analog quantities and the working state of the simulation rod connection structure when in use, thus avoiding the disadvantage of using expensive equipment with high cost and having high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a structural diagram of a rod connection structure limit angle simulation measurement fixture.

[0017] Figure 2 yes Figure 1 Top view of the R state.

[0018] Figure 3 yes Figure 1 Top view of the L state.

[0019] Figure 4 yes Figure 2 AA section view.

[0020] Figure 5 yes Figure 1 Left view of .

[0021] Figure 6 yes Figure 2 BB cross-sectional view.

[0022] Figure 7 yes Figure 1 Right view of .

[0023] Figure 8 yes Figure 2 CC cross-sectional view.

[0024] Fig. 9 This is a three-dimensional image of the constellation of Oculus.

[0025] Fig.10 It is a three-dimensional diagram of a limit angle simulation measurement fixture of a rod connection structure of the present invention.

[0026] In the figure, 1 is a base rod, 2 is a deflection pin, 3 is a rotating shaft, 4 is a base, 5 is a double-eye seat, 6 is a detection pin, 7 is a movable handle, 8 is a lifting eye bolt, 9 is a swivel pressure plate, 10 is a plug, 11 is a cylindrical pin, 12 is a positioning seat, 13 is a nut, 14 is a movable bolt, 15 is a cylindrical pin, 16 is a screw, 17 is a cylindrical pin, 18 is a hexagonal screw, 19 is a spring washer, 20 is an inner threaded sleeve, 21 is an outer threaded sleeve, and 22 is a cylindrical pin. DETAILED DESCRIPTION

[0027] The present invention is achieved through the following technical solutions.

[0028] A rod connection structure limit angle simulation measuring fixture, based on the transfer of simulated quantity, simulates the working state of the rod connection structure when in use. The base 4 is used to install, position, and press the double-eye seat 5 and arrange the eyebolt 8. The positioning seat 12 is installed on the base 4, and the inner holes set in the positioning seat 12 and the rotary pressure plate 9 respectively play the role of positioning and pressing the base rod 1. The double-eye seat 5 structure and the base 4 are fixed with a quick-change bolt composed of an inner hexagon screw 18, a spring washer 19, an inner screw sleeve 20, and an outer screw sleeve 21, wherein the outer screw sleeve 21 is arranged on the double-eye seat 5, the outer thread of the inner screw sleeve 20 is threadedly connected with the outer screw sleeve 21, the through hole set in the inner screw sleeve 20 is slightly larger than the outer thread of the inner hexagon screw 18, the spring washer 19 is arranged between the inner hexagon screw 18 and the inner screw sleeve 20, the lower part of the inner hexagon screw 18 is arranged on the base 4, and the rotation of the double-eye seat 5 is limited by a cylindrical pin 22. The quick-change bolt does not need to manufacture special parts, and a standard part structure is selected. In fact, the arc of the deflection of the deflection pin 2 around the rotating shaft 3 cannot be less than the angle α. When the deflection is symmetrical, the right deflection angle β=α / 2 and the left deflection angle γ=α / 2. A certain compensation gap must be left at the contact between the base rod 1 and the deflection pin 2. If interference occurs on site, the base rod 1 or the deflection pin 2 must be replaced to meet the assembly requirements. Repair is prohibited because the surface quality may be damaged and the roughness may be reduced during repair. The two positioning seats 12 installed on the base 4 are required to have the same height at the center of the hole during manufacturing, and the height limit H is implemented according to the general tolerance. The positioning seat 12 is provided with a manufacturing process hole to facilitate the control of the distance between the double-eye seat 5 and the positioning seat 12; the double-eye seat 5 is provided with two holes, and the detection pin 6 is inserted into the two holes respectively to simulate the left and right limit use states of the rod connection structure. One end of the detection pin 6 is inserted into the blind hole of the deflection pin 2 away from one end of the base rod 1, and the other end of the detection pin 6 is connected to the handle, which has a step on the handle for axially limiting the detection pin 6. The λ elevation angle formed by the rotation of the deflection pin 2 and the base rod 1 can be adjusted according to the function of the rod connection structure. The rotary pressure plate 9 flips and presses the ring of the base rod 1. The distance between the two rings is L1. The distance L2 between the center line of the rotating shaft 3 and the second ring determines the specific numerical values ​​of the left and right deflection angles α, right deflection β=α / 2, and left deflection γ=α / 2, that is, the limit position of the double-eye seat 5 to insert the detection pin 6. The base 4 is designed as a grid structure to minimize the deadweight. The base 4 is provided with eyebolts 8 and auxiliary process holes. The position of the simulation measurement fixture is determined by the standard sample of the rod connection structure; the qualified simulation measurement fixture is used to check whether the self-made rod connection structure meets the requirements. The present invention has the advantages of using the standard process parts of the rod connection structure to simulate the use state to make the simulation measurement fixture, avoiding the disadvantage of using expensive equipment with high cost, high detection efficiency, and the ability to quickly respond to customer order needs.

[0029] The method of using the fixture is as follows: connect the base rod 1 and the butt hole of the deflection pin 2 with the rotating shaft 3 to form a rod connection structure, check the rotation state of the deflection pin 2, install the rod connection structure as a whole into the simulation measurement fixture, shake the deflection pin 2 to the right limit position, if the detection pin 6 can be smoothly inserted into the blind hole of the deflection pin 2 away from the base rod 1, then the right deflection angle β of the rod connection structure is α / 2, and the limit is qualified. Shake the deflection pin 2 to the left limit position, if the detection pin 6 can be smoothly inserted into the blind hole away from the base rod 1, then the left deflection angle γ of the rod connection structure is α / 2, and the limit is qualified.

[0030] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable technicians familiar with the technical field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit and essence of the present invention should be included in the protection scope of the present invention. The technology, shape, and structure parts not described in detail in the present invention are all well-known technologies.

Claims

1. A rod connection structure limit angle simulation measurement fixture, characterized in that: The invention comprises a base (4), on which a clamping structure for clamping a base rod (1) so that the base rod (1) is located in a horizontal direction and a double-eye seat (5) are arranged, the axes of two holes provided on the double-eye seat (5) respectively coincide with the axes of the deflection pin (2) when the deflection pin (2) deflects around a rotation axis (3) to a left or right limit position, and a detection pin (6) can pass through the hole on the double-eye seat (5) and be inserted into a blind hole of the deflection pin (2) away from the base rod (1).

2. A rod connection structure limit angle simulation measurement fixture as claimed in claim 1, characterized in that: Clamping structures are arranged at two locations on the base (4).

3. A rod connection structure limit angle simulation measurement fixture as claimed in claim 1, characterized in that: The clamping structure comprises a positioning seat (12) connected to a base (4); the positioning seat (12) and a rotary pressure plate (9) form a clamp capable of clamping the base rod (1).

4. A rod connection structure limit angle simulation measurement fixture as claimed in claim 3, characterized in that: The positioning seat (12) and the rotary pressure plate (9) together form a circular hole capable of clamping the base rod (1). The positioning seat (12) is hinged to the rotary pressure plate (9) at one end, and the other end is connected by a live bolt (14) and then locked by a nut (14). The live bolt (14) and the positioning seat (12) are connected by a cylindrical pin (15).

5. The limit angle simulation measurement fixture of a rod connection structure according to claim 1, characterized in that: The detection pin (6) is clearance-matched with the hole on the double-eye seat (5).

6. A rod connection structure limit angle simulation measurement fixture as claimed in claim 1, characterized in that: The double eye seat (5) is fixed by a quick-change bolt, an outer screw sleeve (21) in the quick-change bolt is arranged on the double eye seat (5), an inner screw sleeve (20) is arranged on an inner hexagon screw (18), the inner screw sleeve (20) and the outer screw sleeve (21) are connected by threads, a spring washer (19) is arranged between the inner hexagon screw (18) and the inner screw sleeve (20), the lower part of the inner hexagon screw (18) is arranged on the base (4), and the rotation of the double eye seat (5) is limited by a cylindrical pin (22).

7. A rod connection structure limit angle simulation measurement fixture as claimed in claim 3, characterized in that: The positioning seat (12) is connected to the base (4) through a screw (16) and a cylindrical pin (17).

8. The rod connection structure limit angle simulation measurement fixture according to claim 1, characterized in that: One end of the detection pin (6) away from the deflection pin (2) is connected to a handle, and the handle is provided with a step for axially limiting the detection pin (6).

9. The limit angle simulation measurement fixture of a rod connection structure according to claim 1, characterized in that: The base (4) is a grid structure.

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