A test fixture

Abstract

The present invention discloses a test fixture, which relates to the field of test product clamping equipment, and includes an L-shaped arm, a ball head block positioning rod, a slide groove, a ring block, an auxiliary side rotation type guide rod, a guide ring, a ball, a U-shaped seat, a connection groove, a rotating shaft, a slider, a spherical groove, a strip block, a strip slide seat, a rectangular hole, a guide rod, a short shaft, a clamping claw connection block, a cylinder, a circular plate, a clamping claw and a push-pull actuator. The U-shaped seat is provided with connection grooves on both sides, and a ball is connected in a rolling manner in the connection groove, and a guide ring is welded on the surface of the ball, and the guide ring is slidably installed on the auxiliary side rotation type guide rod. The benefit of the present invention lies in that: by adopting a rolling connection method between the connection groove set on the U-shaped seat and the ball on the guide ring, and combining the sliding contact between the guide ring and the auxiliary side rotation type guide rod, the directional thrust required for lateral rotation is formed by means of up and down push-pull movement, and the structural function of the specific synchronous rotary clamp is greatly and quickly completed The direction adjustment of the clamped object is completed.

Description

Technical Field

[0001] The invention relates to the field of test product clamping equipment, in particular to a test fixture. Background Art

[0002] In some test processes, the test object needs to be transferred through a dedicated test clamping device, so the test clamping devices involved will be equipped with a fixture. However, the internal space of the test clamping device is limited, which is not conducive to installing a power structure connected to the configured fixture for rotation, resulting in only a single clamping task being completed, and the rotation action cannot be completed synchronously, which is not conducive to quickly and efficiently adjusting the direction of the clamped object. Therefore, a test fixture is proposed to address the above problems. Summary of the invention

[0003] The object of the present invention is to provide a test fixture in order to solve the above-mentioned problem.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a test fixture, including an L-shaped arm, a positioning rod, a ring block, an auxiliary side-rotating guide rod, a guide ring, a U-shaped seat, a slider, a short shaft and a clamping claw connecting block. A screw hole is opened in the middle of the side of the L-shaped arm, and a ball head block is installed at one end of the L-shaped arm. The screw hole is fixedly connected to the middle of the positioning rod, and the sliding grooves at both ends of the positioning rod are in sliding contact with the corresponding parts of the ring block. A short shaft is installed in the U-shaped seat, and the short shaft is connected to the end groove at the other end of the L-shaped arm. The ball head block is connected to the groove at the end of the L-shaped arm. The spherical grooves at the bottom of the slider are slidably connected to each other, and the slider is slidably installed in the corresponding position of the strip slide seat, the bottom of the U-shaped seat is rotatably connected to the middle part of the strip block through a rotating shaft, and connecting grooves are opened on both sides of the U-shaped seat, balls are rotatably connected in the connecting grooves, and guide rings are welded on the surfaces of the balls, the guide rings are slidably installed on the auxiliary side rotary guide rod, and one end of the auxiliary side rotary guide rod is welded and fixed to the corresponding position of the ring block, a clamping claw connecting block is installed on the top of the slider, and a clamping claw is installed on the clamping claw connecting block, and a push-pull actuator is installed in the middle position of the bottom of the strip block.

[0005] Preferably, two rectangular holes are symmetrically opened at the bottom of the strip slide, and an L-shaped arm portion passes through each rectangular hole.

[0006] Preferably, the auxiliary side-rotating guide rod portion is a spiral structure, and the spiral structure portion is parallel to the curved surface formed by the rotation of the U-shaped seat.

[0007] Preferably, the ring block is fixedly installed in the mouth of the cylinder, and a circular plate is installed at the hole at the bottom of the cylinder.

[0008] Preferably, a hole structure is opened in the middle of the circular plate, and the corresponding end of the push-pull actuator is fixedly mounted on the bottom of the circular plate.

[0009] Preferably, guide holes are provided at both ends of the strip block, and guide rods are slidably installed in the guide holes, and the bottom ends of the guide rods are fixedly installed on the inner side surfaces of the circular plate.

[0010] Preferably, the push-pull actuator is divided into an electric push rod and a cylinder.

[0011] The beneficial effects of the present invention are: by adopting a rolling connection method between the connection groove set on the U-shaped seat and the ball on the guide ring, combined with the sliding contact between the guide ring and the auxiliary side rotation guide rod, the directional thrust required for lateral rotation is formed by means of up and down push-pull movement, and the specific structural function of the synchronous rotary clamp can greatly and quickly complete the direction adjustment of the clamped objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a top view of the partial structure of the whole invention;

[0015] Figure 3 A three-dimensional diagram of the connection structure of the L-shaped arm, the slider and the strip slide seat of the present invention;

[0016] Figure 4 This is a schematic diagram of the connection structure of the L-shaped arm and the slider of the present invention;

[0017] Figure 5 This is a schematic diagram of the L-shaped arm connection structure of the present invention;

[0018] Figure 6 This is a schematic diagram of the connection structure of the slider of the present invention;

[0019] Figure 7 The push-pull actuator in the present invention is a schematic diagram of the overall structure of an electric push rod and its connection;

[0020] Figure 8 This is a schematic diagram of the overall structure in which the push-pull actuator is a cylinder and its connections in the present invention.

[0021] In the figure: 1, L-shaped arm; 110, screw hole; 120, ball head block; 130, end groove; 2, positioning rod; 210, slide groove; 3, ring block; 4, auxiliary side rotation guide rod; 5, guide ring; 510, ball; 6, U-shaped seat; 610, connecting groove; 620, rotating shaft; 7, slider; 710, spherical groove; 8, strip block; 9, strip slide seat; 910, rectangular hole; 10, guide rod; 11, short shaft; 12, clamping claw connecting block; 13, cylinder; 14, round plate; 15, clamping claw; 16, push-pull actuator. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] See also Figure 1-8 As shown, a test fixture comprises an L-shaped arm 1, a positioning rod 2, a ring block 3, an auxiliary side-rotating guide rod 4, a guide ring 5, a U-shaped seat 6, a slider 7, a short shaft 11 and a clamping claw connecting block 12. A screw hole 110 is provided in the middle of the side of the L-shaped arm 1, and a ball head block 120 is installed at one end of the L-shaped arm 1. The screw hole 110 is fixedly connected with the middle of the positioning rod 2, and the corresponding parts of the ring block 3 are in sliding contact in the profiled slide grooves 210 at both ends of the positioning rod 2. The fixedly installed ring block 3 is in sliding contact with the corresponding end of the positioning rod 2 through the profiled slide grooves 210, which not only plays a role in limiting the upward and downward movement of the positioning rod 2, but also ensures the guiding property of the lateral rotation of the positioning rod 2 and its connecting part.

[0026] A short shaft 11 is installed in the U-shaped seat 6, and the short shaft 11 is connected with the end groove 130 located at the other end of the L-shaped arm rod 1, the ball head block 120 is slidably connected with the spherical groove 710 located at the bottom of the slider 7, and the slider 7 is slidably installed in the corresponding part of the strip slide seat 9, the bottom of the U-shaped seat 6 is rotatably connected with the middle part of the strip block 8 through the rotating shaft 620, and connecting grooves 610 are opened on both sides of the U-shaped seat 6, and balls 510 are rollingly connected in the connecting grooves 610, and guide rings 5 ​​are welded on the surface of the balls 510, the guide ring 5 is slidably installed on the auxiliary side rotary guide rod 4, and one end of the auxiliary side rotary guide rod 4 is welded and fixed to the corresponding part of the ring block 3, a clamping claw connecting block 12 is installed on the top of the slider 7, and a clamping claw 15 is installed on the clamping claw connecting block 12, and a push-pull actuator 16 is installed in the middle position of the bottom of the strip block 8.

[0027] like Figure 3 As shown, two rectangular holes 910 are symmetrically opened at the bottom of the strip slide 9, and a portion of the L-shaped arm rod 1 passes through each rectangular hole 910. The rectangular holes 910 are provided to leave displacement space for the portion of the L-shaped arm rod 1.

[0028] Combination Figure 1 and Figure 2 As shown, the auxiliary side-rotating guide rod 4 is a spiral structure, and the spiral structure part is parallel to the curved surface formed by the rotation of the U-shaped seat 6, wherein Figure 1 and Figure 2 The auxiliary side-rotating guide rod 4 is not the only preferred structural shape. The structural shape of the auxiliary side-rotating guide rod 4 matches the required displacement action direction.

[0029] like Figure 1 As shown, the ring block 3 is fixedly installed in the mouth of the cylinder 13, and a circular plate 14 is installed at the hole at the bottom of the cylinder 13. A hole structure is opened in the middle of the circular plate 14, and the corresponding end of the push-pull actuator 16 is fixedly installed at the bottom of the circular plate 14. The installation and fixation of the corresponding structure is facilitated by the provision of the circular plate 14.

[0030] Combination Figure 1 As shown, guide holes are provided at both ends of the strip block 8, and guide rods 10 are slidably installed in the guide holes. The bottom ends of the guide rods 10 are fixedly installed on the inner side of the circular plate 14. The two symmetrically distributed guide rods 10 guide the strip block 8 to move up and down.

[0031] like Figure 7 and Figure 8 As shown, the push-pull actuator 16 is divided into an electric push rod and a cylinder, which increases the diversity of power sources for implementing power separation and combination on the clamping jaws 15.

[0032] Working principle: When the push-pull actuator 16 pushes the connected bar block 8 upward or pulls downward, the bar block 8 moves upward or downward to the U-shaped seat 6 connected via the rotating shaft 620, further driving the top of the L-shaped arm rod 1 connected via the short shaft 11 and the end groove 130 to rotate outward or inward. Since the ball head block 120 installed at one end of the L-shaped arm rod 1 is rollingly connected with the spherical groove 710 at the bottom of the slider 7, as shown in the specific Figure 4 , Figure 5 and Figure 6 , and combined with the slider 7, it is slidably installed on the strip slide 9, so as to achieve the effect of separating and combining the two sliders 7, and further drive the clamping jaws 15 connected by the clamping jaw connecting block 12 to implement clamping;

[0033] During the clamping or unclamping operation of the clamping jaw 15, the U-shaped seat 6 is moved upward or downward at the same time, and is connected to the guide ring 5 via the ball 510 in the connecting groove 610 on the U-shaped seat 6, and the guide ring 5 is in sliding contact with the auxiliary side-rotating guide rod 4 which is partially spiral, so that the force of the upward and downward movement forms a lateral rotation component, which causes the U-shaped seat 6 and the connected strip slide 9 and the clamping jaw 15 to perform lateral rotation in the corresponding angle range;

[0034] In summary: by adopting a rolling connection method between the connection groove 610 set on the U-shaped seat 6 and the ball 510 on the guide ring 5, and combining the sliding contact between the guide ring 5 and the auxiliary side rotation guide rod 4, the directional thrust required for lateral rotation is formed by means of up and down push-pull movement, and the specific structural function of the synchronous rotary clamp can greatly and quickly complete the direction adjustment of the clamped objects.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test fixture, characterized in that: The invention comprises an L-shaped arm (1), a positioning rod (2), a ring block (3), an auxiliary side-rotating guide rod (4), a guide ring (5), a U-shaped seat (6), a slider (7), a short shaft (11) and a clamping claw connecting block (12). A screw hole (110) is provided in the middle of the side of the L-shaped arm (1), and a ball head block (120) is installed at one end of the L-shaped arm (1). The screw hole (110) is fixedly connected to the middle of the positioning rod (2), and the sliding grooves (210) at both ends of the positioning rod (2) are in sliding contact with the corresponding parts of the ring block (3). The U-shaped seat (6) is provided with a short shaft (11), and the short shaft (11) is connected to the end groove (130) at the other end of the L-shaped arm (1). The ball head block (120) is connected to the spherical surface at the bottom of the slider (7). The grooves (710) are slidably connected to each other, and the slider (7) is slidably mounted on the corresponding part of the strip slide seat (9). The bottom of the U-shaped seat (6) is rotatably connected to the middle part of the strip block (8) through the rotating shaft (620), and the two side surfaces of the U-shaped seat (6) are provided with connecting grooves (610). A ball (510) is rotatably connected in the connecting groove (610), and a guide ring (5) is welded on the surface of the ball (510). The guide ring (5) is slidably mounted on the auxiliary side rotating guide rod (4), and one end of the auxiliary side rotating guide rod (4) is welded and fixed to the corresponding part of the ring block (3). A clamping claw connecting block (12) is installed on the top of the slider (7), and a clamping claw (15) is installed on the clamping claw connecting block (12). A push-pull actuator (16) is installed at the middle position of the bottom of the strip block (8).

2. A test fixture according to claim 1, characterized in that: Two rectangular holes (910) are symmetrically formed at the bottom of the strip-shaped sliding seat (9), and a portion of an L-shaped arm rod (1) passes through each rectangular hole (910).

3. A test fixture according to claim 1, characterized in that: The auxiliary side-rotating guide rod (4) has a spiral structure, and the spiral structure portion is parallel to the curved surface formed by the rotation of the U-shaped seat (6).

4. A test fixture according to claim 1, characterized in that: The ring block (3) is fixedly installed in the mouth of the cylinder (13), and a circular plate (14) is installed at the hole at the bottom of the cylinder (13).

5. A test fixture according to claim 1, characterized in that: A hole structure is provided in the middle of the circular plate (14), and a corresponding end of a push-pull actuator (16) is fixedly mounted on the bottom of the circular plate (14).

6. A test fixture according to claim 5, characterized in that: Both ends of the strip block (8) are provided with guide holes, and guide rods (10) are slidably installed in the guide holes. The bottom end of the guide rod (10) is fixedly installed on the inner side surface of the circular plate (14).

7. A test fixture according to claim 1, characterized in that: The push-pull actuator (16) is divided into an electric push rod and a cylinder.

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