Detection tool clamp

Abstract

The utility model relates to a detection work fixture which comprises a base, a fixed fixing seat is fixed on the upper surface of the base, a movable fixing seat is arranged on one side, located on the fixed fixing seat, of the base through a driving mechanism, the driving mechanism is used for driving the movable fixing seat to be close to or away from one side of the fixed fixing seat, and a first L-shaped hook is fixed on one side, close to the fixed fixing seat, of the movable fixing seat. A second L-shaped hook is fixed to the side, close to the movable fixing base, of the fixed fixing base, a guide hole with the two ends communicated is formed in the movable fixing base, a limiting rod is slidably inserted into the guide hole, and a fastening device is arranged on the fixed fixing base. According to the utility model, both tensile detection and compression detection can be carried out on the spring, the practicability is high, when the tensile or compression detection is carried out on the spring, the limiting rod can be arranged in the spring in a penetrating manner, and the spring can be guided and limited by using the limiting rod, so that the spring is ensured to be in an approximately horizontal state all the time in the detection process; detection is prevented from being affected by flexible bending of the spring, and detection result accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece detection, in particular to a detection fixture. Background Art

[0002] In the manufacturing process of the prior art springs, the tensile and compressive properties of the springs need to be tested to eliminate unqualified products. In order to ensure the accuracy of the spring testing, the springs need to be fixed on a testing fixture.

[0003] The existing method for testing spring performance is to limit the two ends of the spring on two connecting plates respectively, and compress the spring by driving the two connecting plates closer to each other to achieve the compression performance test of the spring, and to stretch the spring by driving the two connecting plates away from each other to achieve the tensile performance test of the spring.

[0004] However, during the compression test of the spring, there is a lack of limiting guiding effect, and the spring is very easy to bend, and the bending generally occurs in the middle part of the spring, which will affect the detection accuracy of the spring performance. Utility Model Content

[0005] The utility model aims to provide a high-accuracy detection fixture, which effectively solves the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions.

[0007] A detection fixture comprises a base, a fixed base is fixed on the upper surface of the base, a dynamic fixed base is provided on the base at one side of the fixed fixed base through a driving mechanism, the driving mechanism is used to drive the dynamic fixed base to move closer to or away from the fixed fixed base, a first L-shaped hook is fixed to the side of the dynamic fixed base close to the fixed fixed base, and a second L-shaped hook is fixed to the side of the fixed fixed base close to the dynamic fixed base, the dynamic fixed base is provided with guide holes with two ends passing through, a limit rod is slidably inserted in the guide hole, and a fastening device is provided on the fixed fixed base, after the two ends of the spring are respectively hung on the first L-shaped hook and the second L-shaped hook, the limit rod passes through the spring, and the end portion is in contact with the fixed fixed base close to the dynamic fixed base, and the end portion of the limit rod can be fastened to the fixed fixed base through the fastening device.

[0008] It can be seen that the testing fixture can perform both tensile and compressive tests on springs, and is highly practical. At the same time, when performing tensile or compressive tests on springs, a limit rod can be inserted into the spring, and the limit rod can be used to guide and limit the spring, ensuring that the spring is always in an approximately horizontal state during the testing process, avoiding the flexural bending of the spring and affecting the test, and improving the accuracy of the test results. One end of the limit rod is fixed on the fixed seat, and the other end can be slidably mounted on the dynamic seat and pass through the tested spring, with a compact structure and a small size.

[0009] Furthermore, the driving mechanism includes a threaded rod, a driving motor and a nut seat. A guide groove is provided on the upper surface of the base. The threaded rod is rotatably installed in the guide groove. The driving motor is fixed to the side end of the base, and the output shaft is fixedly connected to one end of the threaded rod. The nut seat is limitedly slidably installed in the guide groove, and the thread is matched with the threaded rod. The dynamic fixed seat is fixed to the top of the nut seat.

[0010] By driving the motor, its output shaft drives the threaded rod to rotate. The rotating threaded rod can threadably drive the nut seat to move in the guide groove and drive the dynamic fixed seat to move synchronously, providing a stable drive for the translation adjustment of the dynamic fixed seat.

[0011] Furthermore, the upper surface of the base is provided with slide grooves on both sides of the guide groove, and sliders are slidably installed in the two slide grooves, and vertical poles are respectively fixed on the tops of the two sliders, and cantilevers are commonly fixed on the tops of the two vertical poles, and the end of the limit rod away from the fixed seat is fixed on the cantilever. The slide grooves are distributed on both sides of the threaded rod, and the structure is compact and reasonable, which is conducive to miniaturization design.

[0012] By adjusting the slider left and right along the slide groove, the limit rod can be driven to slide synchronously under the connection between the vertical pole and the cantilever, so as to facilitate the limit rod to be adjusted to the side away from the fixed fixing seat, so as to make space for the spring to be installed between the dynamic fixing seat and the fixed fixing seat.

[0013] Furthermore, the cross section of the slide groove is in a T shape, and the cross section of the slider is in a T shape matching the slide groove.

[0014] The cross-sections of the slide groove and the slider are in a T-shape that fits with each other, so that the slider can be limited in the slide groove to prevent the slider from falling out of the slide groove, and the mechanism is stable and firm.

[0015] Furthermore, the fastening device includes a fastening screw and a pinch handle. The fixed seat is provided with a socket with two ends passing through, and the end of the limit rod is provided with a threaded hole matching the fastening screw. The fastening screw is inserted in the socket, and the pinch handle is fixed on the end of the fastening screw. The diameter of the pinch handle is larger than the diameter of the socket.

[0016] After the limit rod is inserted into the guide hole and passes through the inside of the spring to fit against the side of the fixed seat, the fastening screw is aligned and tightened into the threaded hole by twisting the pinch handle to lock the end of the limit rod with the fixed seat to prevent the limit rod from sliding freely during detection and affecting the guiding and limiting effect on the spring.

[0017] Furthermore, a scale line is provided on the upper surface of the base, and the zero scale of the scale line is aligned with the surface of the fixed seat close to the dynamic seat. An indicator piece is provided on the side of the dynamic seat, and the indicator piece is flush with the side of the dynamic seat close to the fixed seat.

[0018] During testing, the distance between the fixed seat and the dynamic seat can be measured through the cooperation of the scale line and the indicator sheet. This distance represents the length of the spring being stretched or compressed, making it convenient to grasp the test results in a timely manner.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0020] The utility model can perform both tensile and compressive tests on springs, and is highly practical. Meanwhile, when performing tensile or compressive tests on springs, a limit rod can be inserted into the spring, and the limit rod can be used to guide and limit the spring, thereby ensuring that the spring is in an approximately horizontal state at all times during the testing process, avoiding flexible bending of the spring that affects the test, and improving the accuracy of the test result. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of the utility model;

[0022] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the layout of the limit rod structure in the utility model;

[0024] Figure 4 It is a detailed structural diagram of the fastening device in the utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the base in the utility model;

[0026] Figure 6 for Figure 2 Enlarged schematic diagram of the structure at A in the middle.

[0027] In the figure: 01, first L-shaped hook; 02, second L-shaped hook; 1, base; 2, fixed seat; 3, driving mechanism; 301, guide groove; 31, threaded rod; 32, driving motor; 33, nut seat; 4, dynamic seat; 41, guide hole; 5, limit rod; 51, slide groove; 52, slider; 53, vertical rod; 54, cantilever; 6, fastening device; 601, socket; 602, threaded hole; 61, fastening screw; 62, pinch handle; 7, scale line; 71, indicator sheet. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 6 The utility model provides a detection fixture, including a base 1, a fixed base 2 is fixed on the upper surface of the base 1, a dynamic fixed base 4 is provided on the base 1 at one side of the fixed fixed base 2 through a driving mechanism 3, the driving mechanism 3 is used to drive the dynamic fixed base 4 to move closer to or away from the fixed fixed base 2, a first L-shaped hook 01 is fixed to the side of the dynamic fixed base 4 close to the fixed fixed base 2, and a second L-shaped hook 02 is fixed to the side of the fixed fixed base 2 close to the dynamic fixed base 4, a guide hole 41 with two ends passing through is provided on the dynamic fixed base 4, a limit rod 5 is slidably inserted in the guide hole 41, and a fastening device 6 is provided on the fixed fixed base 2, after the two ends of the spring are respectively hung on the first L-shaped hook 01 and the second L-shaped hook 02, the limit rod 5 passes through the spring, and the end portion is in contact with the fixed fixed base 2 close to the dynamic fixed base 4, and the end portion of the limit rod 5 can be fastened to the fixed fixed base 2 through the fastening device 6.

[0030] When using the present testing fixture to test the performance of the spring, first hang one end of the spring on the first L-shaped hook 01, and hang the other end of the spring on the second L-shaped hook 02, then slide the limit rod 5 into the guide hole 41, and pass through the inside of the spring to abut against the side of the fixed seat 2, and lock the end of the limit rod 5 with the fixed seat 2 by operating the fastening device 6, and then drive the fixed seat 4 to move closer to one side of the fixed seat 2 by the driving mechanism 3 to compress the spring, so as to realize the compression performance test of the spring, and drive the fixed seat 4 away from the fixed seat 2 by the driving mechanism 3 to stretch the spring to realize the tensile test of the spring, and the limit rod 5 inserted in the spring can play a limiting guiding effect on the spring, which can prevent the spring from bending during the compression process and improve the detection accuracy. After the detection is completed, the fastening device 6 is operated to cancel the limit The rod 5 is tightened, and then the limiting rod 5 is slidably adjusted to the side away from the fixed fixing seat 2, and the limiting rod 5 is pulled out of the spring, which makes it convenient to remove the spring. Specifically, the driving mechanism 3 includes a threaded rod 31, a driving motor 32 and a nut seat 33. A guide groove 301 is provided on the upper surface of the base 1, and the threaded rod 31 is rotatably installed in the guide groove 301. The driving motor 32 is fixed to the side end of the base 1, and the output shaft is fixedly connected to one end of the threaded rod 31. The nut seat 33 is limitedly slidably installed in the guide groove 301, and the thread is matched and mounted on the threaded rod 31. The dynamic fixing seat 4 is fixed on the top of the nut seat 33, and the driving motor 32 works, and its output shaft drives the threaded rod 31 to rotate. The rotating threaded rod 31 can threadably drive the nut seat 33 to move in the guide groove 301, and drive the dynamic fixing seat 4 to move synchronously, providing a stable drive for the translation adjustment of the dynamic fixing seat 4.

[0031] Specifically, the upper surface of the base 1 is provided with slide grooves 51 on both sides of the guide groove 301, and sliders 52 are slidably installed in the two slide grooves 51, and vertical poles 53 are vertically fixed on the top of the two sliders 52, and cantilevers 54 are commonly fixed on the tops of the two vertical poles 53. The end of the limit rod 5 away from the fixed fixing seat 2 is fixed on the cantilever 54. By adjusting the slider 52 left and right along the slide groove 51, the limit rod 5 can be driven to slide synchronously under the connection between the vertical pole 53 and the cantilever 54, so as to facilitate the adjustment of the limit rod 5 to the side away from the fixed fixing seat 2, so as to make space for the spring to be clamped between the dynamic fixing seat 4 and the fixed fixing seat 2.

[0032] Specifically, the cross-section of the slide groove 51 is T-shaped, and the cross-section of the slider 52 is T-shaped that matches the slide groove 51. The cross-sections of the slide groove 51 and the slider 52 are T-shaped that cooperate with each other, so that the slider 52 can be limited in the slide groove 51 to prevent the slider 52 from escaping from the slide groove 51, and the mechanism is stable and firm.

[0033] Specifically, the fastening device 6 includes a fastening screw 61 and a pinch handle 62. The fixed seat 2 is provided with a socket 601 with two ends passing through. The end of the limit rod 5 is provided with a threaded hole 602 matching the fastening screw 61. The fastening screw 61 is inserted into the socket 601, and the pinch handle 62 is fixed to the end of the fastening screw 61. The diameter of the pinch handle 62 is larger than the aperture of the socket 601. After the limit rod 5 is inserted into the guide hole 41 and passes through the inside of the spring to fit and abut against the side of the fixed seat 2, the pinch handle 62 is screwed to align the fastening screw 61 and tighten it into the threaded hole 602, so that the end of the limit rod 5 can be locked with the fixed seat 2 to prevent the limit rod 5 from sliding freely during detection and affecting the guiding and limiting effect of the spring.

[0034] Specifically, a scale line 7 is provided on the upper surface of the base 1, and the zero scale of the scale line 7 is aligned with the surface of the fixed fixing seat 2 on the side close to the dynamic fixing seat 4. An indicator piece 71 is provided on the side of the dynamic fixing seat 4, and the indicator piece 71 is flush with the side of the dynamic fixing seat 4 close to the fixed fixing seat 2. During detection, the distance between the fixed fixing seat 2 and the dynamic fixing seat 4 can be measured through the cooperation of the scale line 7 and the indicator piece 71. The distance represents the length of the spring being stretched or compressed, which makes it convenient to grasp the detection results in a timely manner.

[0035] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A testing fixture, comprising a base (1), characterized in that: A fixed seat (2) is fixed on the upper surface of the base (1); a dynamic seat (4) is provided on the base (1) at one side of the fixed seat (2) via a driving mechanism (3); the driving mechanism (3) is used to drive the dynamic seat (4) to move toward or away from the side of the fixed seat (2); A first L-shaped hook (01) is fixed to a side of the dynamic fixing seat (4) close to the fixed fixing seat (2), and a second L-shaped hook (02) is fixed to a side of the fixed fixing seat (2) close to the dynamic fixing seat (4); The movable fixing seat (4) is provided with a guide hole (41) with two ends passing through, a limit rod (5) is slidably inserted into the guide hole (41), and the fixed fixing seat (2) is provided with a fastening device (6); After the two ends of the spring are respectively hooked on the first L-shaped hook (01) and the second L-shaped hook (02), the limit rod (5) passes through the spring, and the end thereof is in contact with the side of the fixed fixing seat (2) close to the dynamic fixing seat (4), and the end of the limit rod (5) can be fastened to the fixed fixing seat (2) by the fastening device (6).

2. The detection fixture according to claim 1, characterized in that: The driving mechanism (3) comprises a threaded rod (31), a driving motor (32) and a nut seat (33); A guide groove (301) is provided on the upper surface of the base (1), the threaded rod (31) is rotatably mounted in the guide groove (301), the drive motor (32) is fixed to a side end of the base (1), and the output shaft is fixedly connected to one end of the threaded rod (31); The nut seat (33) is installed in the guide groove (301) in a limited sliding manner and is thread-matchedly sleeved on the threaded rod (31). The dynamic fixing seat (4) is fixed on the top of the nut seat (33).

3. The detection fixture according to claim 2, characterized in that: The upper surface of the base (1) is provided with slide grooves (51) on both sides of the guide groove (301), and sliding blocks (52) are slidably installed in the two slide grooves (51), and vertical rods (53) are vertically fixed on the tops of the two sliding blocks (52); A cantilever (54) is commonly fixed to the top ends of the two vertical rods (53), and one end of the limiting rod (5) away from the fixed seat (2) is fixed to the cantilever (54).

4. The detection fixture according to claim 3, characterized in that: The cross section of the slide groove (51) is in a T shape, and the cross section of the sliding block (52) is in a T shape matching the slide groove (51).

5. The detection fixture according to claim 1, characterized in that: The fastening device (6) comprises a fastening screw (61) and a pinch handle (62); The fixed seat (2) is provided with a plug hole (601) with two ends extending therethrough, and the end of the limit rod (5) is provided with a threaded hole (602) matching the fastening screw (61); The fastening screw (61) is inserted into the insertion hole (601), and the pinch handle (62) is fixed on the end of the fastening screw (61), and the diameter of the pinch handle (62) is larger than the hole diameter of the insertion hole (601).

6. The detection fixture according to claim 1, characterized in that: The upper surface of the base (1) is provided with a scale line (7), and the zero mark of the scale line (7) is aligned with the surface of the fixed seat (2) on a side close to the movable seat (4); An indicator sheet (71) is provided on the side of the dynamic fixing seat (4), and the indicator sheet (71) is flush with a side of the dynamic fixing seat (4) close to the fixed fixing seat (2).

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