Buffering structure of precision clamp

Abstract

The utility model discloses a buffer structure of a precision clamp, which relates to the technical field of clamps, is used for being mounted on a clamping jaw of the precision clamp, and comprises a bearing seat, a first supporting rod, a second supporting rod, a connecting shaft, a spring, a connecting piece, a first baffle and a second baffle. Through the arrangement of a first supporting rod, a second supporting rod, a connecting shaft, a spring, a connecting piece, a first baffle and a second baffle, the effect of horizontally supporting the clamping jaws can be achieved, the clamping jaws on the two sides can be kept symmetrical, the clamping stability of the clamping jaws is improved, the buffering effect between the clamping jaws and the bearing plate can be achieved, and the service life of the clamping jaws is prolonged. And the phenomenon that the articles are damaged when the clamping jaws clamp the articles is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a buffer structure of a precision clamp. Background Art

[0002] At present, in the field of clamps, it is difficult to accurately apply the displacement clamping force, or some clamps are complex and have high requirements on materials, and are expensive. For electronic clamps, the aging and waterproofing ability is poor. There are problems such as high cost, complex principle structure, high environmental requirements, and poor clamping effect.

[0003] The prior art 202120523792.6 discloses a precision clamp with a buffer structure, including an adjusting box, and a first clamp group, an adjusting rod, a rotating arm, and a fixed frame arranged on the adjusting box, and a second clamp group is arranged on the fixed frame. The first clamp group and the second clamp group are both composed of a connecting rod, a rib plate, a supporting seat, a buffer spring, and a clamp. The connecting rod is fixed to the supporting seat, and a buffer groove is provided on the supporting seat. Both ends of the buffer spring are fixed to the supporting seat and the clamp, and the rib plate is fixed between the connecting rod and the supporting seat. The outer wall surface of the clamp is provided with a damping and anti-slip layer.

[0004] The prior art has the following technical defects: the support plate and the clamp are connected only by a spring. Due to the fact that the spring is easily deformed laterally under the action of the clamp's own gravity, the two clamps are easily uneven in height, making it difficult to achieve symmetrical clamping of the two sides of the product, which easily leads to unstable product clamping. Utility Model Content

[0005] The purpose of the utility model is to provide a buffer structure of a precision fixture to solve the above technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The first and second support rods are connected with each other through the arc guide groove, and the second support rod is connected with the arc guide groove by the arc guide groove. The arc guide groove has the first support rod and the second support rod is connected with the arc guide groove by the arc guide groove. The first support rod is arranged on one side of the first baffle plate, and the second support rod is arranged on one side of the second baffle plate. The first support rod and the second support rod are respectively provided with a connecting member at one end, and the connecting member is arranged in the arc guide groove and connected to one end of the spring. The other ends of the first support rod and the second support rod are rotatably connected to the clamping jaw.

[0008] Preferably, both ends of the connecting shaft are rotatably connected to the first support rod and the second support rod, and the first support rod and the second support rod are cross-arranged.

[0009] Preferably, a support member is further included, wherein the support member is disposed in the mounting groove, the support member is located between the first baffle plate and the second baffle plate, and one end of the support member is connected to the middle portion of the connecting shaft.

[0010] Preferably, a first slot and a second slot are provided on one side of the clamp facing the first support rod and the second support rod, the other end of the first support rod is arranged in the first slot, and the other end of the second support rod is arranged in the second slot.

[0011] As a further preference, it also includes a first rotating shaft and a second rotating shaft, the other end of the first support rod is connected to the inner walls on both sides of the first slot through the first rotating shaft, and the other end of the second support rod is connected to the inner walls on both sides of the second slot through the second rotating shaft.

[0012] Preferably, the connecting member includes a first fixing rod and a second fixing rod, one end of the first fixing rod is connected to the first support rod or the second support rod, the other end of the first fixing rod is connected to the second fixing rod, the second fixing rod is located in the arc guide groove and connected to the spring, wherein the diameter of the first fixing rod is smaller than the diameter of the second fixing rod.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] In the utility model, through the arrangement of the first support rod, the second support rod, the connecting shaft, the spring, the connecting piece, the first baffle plate and the second baffle plate, the clamping jaws can be horizontally supported, so that the clamping jaws on both sides can maintain symmetry, improve the stability of the clamping jaws, and achieve a buffering effect between the clamping jaws and the supporting plate, avoiding the phenomenon of damage to objects when the clamping jaws clamp objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the cooperation between the buffer structure and the clamping claw of the precision clamp in the utility model;

[0016] Figure 2 It is a side view of the cooperation between the buffer structure and the clamping claw of the precision clamp in the utility model;

[0017] Figure 3 It is a three-dimensional structure of the buffer structure and the clamping claw of the precision clamp in the utility model. Figure 1 ;

[0018] Figure 4 It is a three-dimensional structure of the buffer structure and the clamping claw of the precision clamp in the utility model. Figure 2 ;

[0019] Figure 5 It is a structural schematic diagram of the buffer structure of the precision fixture in the utility model;

[0020] Figure 6 It is a schematic diagram of the structure of the cooperation between the first baffle plate, the second baffle plate and the first support rod and the second support rod in the utility model;

[0021] Figure 7 It is a schematic diagram of the cooperation between the first support rod and the second support rod and the support member in the utility model.

[0022] In the figure: 1. Clamping jaw; 2. Support seat; 3. First support rod; 4. Second support rod; 5. Connecting shaft; 6. Spring; 7. Connecting member; 8. First baffle plate; 9. Second baffle plate; 10. Mounting groove; 11. Arc guide groove; 12. Support member; 13. First notch; 14. Second notch; 15. First rotating shaft; 16. Second rotating shaft; 17. First fixing rod; 18. Second fixing rod. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0024] In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Figure 1 This is a front view of the cooperation between the buffer structure and the clamping claw of the precision clamp in the utility model; Figure 2 It is a side view of the cooperation between the buffer structure and the clamping claw of the precision clamp in the utility model; Figure 3 It is a three-dimensional structure of the buffer structure and the clamping claw of the precision clamp in the utility model. Figure 1 ; Figure 4 It is a three-dimensional structure of the buffer structure and the clamping claw of the precision clamp in the utility model. Figure 2 ; Figure 5 It is a structural schematic diagram of the buffer structure of the precision fixture in the utility model; Figure 6 It is a schematic diagram of the structure of the cooperation between the first baffle plate, the second baffle plate and the first support rod and the second support rod in the utility model; Figure 7 This is a schematic diagram of the first support rod and the second support rod in the utility model cooperating with the support member. Figures 1 to 7As shown, a preferred embodiment is shown, which shows a buffer structure of a precision clamp, which is used to be installed on the clamping jaw 1 of the precision clamp, including a supporting seat 2, a first support rod 3, a second support rod 4, a connecting shaft 5, a spring 6, a connecting piece 7, a first baffle plate 8 and a second baffle plate 9. Two mounting grooves 10 are provided on one side of the supporting seat 2, and a first baffle plate 8 and a second baffle plate 9 are provided in each mounting groove 10. An arc guide groove 11 is provided on the side away from each other of the first baffle plate 8 and the second baffle plate 9, and a spring 6 is provided in the arc guide groove 11. The first support rod 3 and the second support rod 4 are connected by a connecting shaft 5. The first support rod 3 is arranged on one side of the first baffle plate 8, and the second support rod 4 is arranged on one side of the second baffle plate 9. A connecting piece 7 is provided at one end of the first support rod 3 and the second support rod 4, respectively. The connecting piece 7 is arranged in the arc guide groove 11 and connected to one end of the spring 6. The other ends of the first support rod 3 and the second support rod 4 are rotatably connected to the clamping jaw 1. In this embodiment, refer to Figure 3 and Figure 4 As shown, the first support rod 3 and the second support rod 4 are arranged between the support seat 2 and the clamping jaw 1. The first support rod 3 and the second support rod 4 are connected by a connecting shaft 5 and are arranged crosswise. The first support rod 3 and the second support rod 4 are used to support the clamping jaw 1 so that the two clamping jaws 1 can be kept at the same height to avoid unstable clamping. Among them, a damping anti-skid layer is provided on the side of the clamping jaw 1 away from the first support rod 3 and the second support rod 4. The support seat 2 in this embodiment can be connected to an external connecting rod, and the connecting rod is driven by an external adjustment box to drive the support seat 2 to move horizontally, so that the clamping jaw 1 on the support seat 2 can move closer to or away from another clamping jaw 1. Among them, the connection methods between the connecting rod and the support seat 2 are all prior art.

[0027] In this embodiment, see Figure 6 As shown, the arc guide groove 11 is arranged on the first baffle plate 8 and the second baffle plate 9, and one end of the first support rod 3 and the second support rod 4 is slidably connected to the arc guide groove 11 through the connecting member 7. The connecting member 7 can slide in the arc guide groove 11, thereby squeezing the spring 6 to play a buffering role.

[0028] Further, as a preferred embodiment, the two ends of the connecting shaft 5 are rotatably connected to the first support rod 3 and the second support rod 4, and the first support rod 3 and the second support rod 4 are arranged crosswise. The two ends of the connecting shaft 5 can rotate with the first support rod 3 and the second support rod 4 to avoid affecting the normal rotation of the first support rod 3 and the second support rod 4. In this embodiment, the connecting shaft 5 can be provided with a limit plate on both sides of the first support rod 3 and the second support rod 4 to prevent the first support rod 3 and the second support rod 4 from being separated from the connecting shaft 5.

[0029] Further, as a preferred embodiment, it further includes a support member 12, the mounting groove 10 is provided with the support member 12, the support member 12 is located between the first baffle plate 8 and the second baffle plate 9, and one end of the support member 12 is connected to the middle of the connecting shaft 5. The support member 12 may be a support plate for supporting the connecting shaft 5, see Figure 6 As shown, one end of the support plate is provided with a fixing hole for the connecting shaft 5 to pass through, and the connecting shaft 5 is inserted into the fixing hole. The connecting shaft 5 is fixed in position, and the first supporting rod 3 and the second supporting rod 4 can rotate relative to the supporting shaft. Figure 5 As shown, the support member 12 is disposed between the first baffle plate 8 and the second baffle plate 9, and the support member 12 does not extend out of the mounting slot 10. In other embodiments, one end of the support member 12 may also extend out of the mounting slot 10, and the specific selection may be made as needed. If one end of the support member 12 extends out of the mounting slot 10, a side of the clamping jaw 1 close to the supporting plate may be provided with an avoidance slot, and the avoidance slot is directly opposite to the support member 12, so that one end of the support member 12 can enter the avoidance slot, but the connecting shaft 5 will not enter the avoidance slot.

[0030] Further, as a preferred embodiment, a first notch 13 and a second notch 14 are provided on one side of the clamping jaw 1 facing the first support rod 3 and the second support rod 4, the other end of the first support rod 3 is arranged in the first notch 13, and the other end of the second support rod 4 is arranged in the second notch 14. Figure 4 As shown, the first slot 13 and the second slot 14 are arranged along the width direction of the clamp 1. It also includes a first rotating shaft 15 and a second rotating shaft 16. The other end of the first support rod 3 is connected to the inner walls on both sides of the first slot 13 through the first rotating shaft 15, and the other end of the second support rod 4 is connected to the inner walls on both sides of the second slot 14 through the second rotating shaft 16. The two ends of the first rotating shaft 15 are fixedly connected to the inner walls on both sides of the first slot 13, and the two ends of the second rotating shaft 16 are fixedly connected to the inner walls on both sides of the second slot 14. The other end of the first support rod 3 can rotate with the first rotating shaft 15, and the second support rod 4 can rotate with the second rotating shaft 16.

[0031] Further, as a preferred embodiment, the connecting member 7 includes a first fixing rod 17 and a second fixing rod 18, one end of the first fixing rod 17 is connected to the first support rod 3 or the second support rod 4, the other end of the first fixing rod 17 is connected to the second fixing rod 18, the second fixing rod 18 is located in the arc guide groove 11 and connected to the spring 6, wherein the diameter of the first fixing rod 17 is smaller than the diameter of the second fixing rod 18. Figure 7As shown, the first fixing rod 17 and the second fixing rod 18 are both cylindrically arranged, which can facilitate the sliding of the connecting member 7 in the arc-shaped guide groove 11. The width of the bottom of the arc-shaped guide groove 11 is greater than the width of the notch, and the second fixing rod 18 is arranged inside the arc-shaped guide groove 11, and the first fixing rod 17 is arranged in the notch of the arc-shaped guide groove 11, which can prevent the connecting member 7 from being separated from the arc-shaped guide groove 11. One end of the spring 6 is welded to the outer wall of one side of the second fixing rod 18, and the other end of the spring 6 is connected to the inner wall of one side of the arc-shaped guide groove 11.

[0032] In this embodiment, the side wall of the arc-shaped guide groove 11 can limit the spring 6 so that the spring 6 can only achieve axial deformation.

[0033] When in use, the connecting rod can be driven by the external adjustment box to drive the support seat 2 and the clamping jaw 1 to move horizontally. When the two clamping jaws 1 contact the outer wall of the object, the adjustment box continues to drive the connecting rod to drive the support seat 2 to move. At this time, the clamping jaw 1 will be subjected to a reverse force and cooperate with the support seat 2, so that the first support rod 3 and the second support rod 4 begin to rotate with the connecting shaft 5 as the rotation axis. When the first support rod 3 and the second support rod 4 rotate, they will drive the connecting member 7 to slide in the arc guide groove 11, thereby squeezing the spring 6 to achieve a buffering effect. When not in use, the first support rod 3 and the second support rod 4 can automatically drive the clamping jaw 1 back to the original position (the original position here refers to the position of the clamping jaw 1 relative to the support seat 2) under the action of the spring 6.

[0034] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A buffer structure for a precision fixture, used for installation on the clamping jaws of the precision fixture, characterized in that: The invention comprises a supporting seat, a first support rod, a second support rod, a connecting shaft, a spring, a connecting piece, a first baffle and a second baffle, wherein one side of the supporting seat is provided with two mounting grooves, each of the mounting grooves is provided with the first baffle and the second baffle, and the first baffle and the second baffle are respectively provided with an arc guide groove on the side away from each other, the spring is provided in the arc guide groove, the first support rod and the second support rod are connected through the connecting shaft, the first support rod is arranged on one side of the first baffle, the second support rod is arranged on one side of the second baffle, one end of the first support rod and the second support rod are respectively provided with a connecting piece, the connecting piece is arranged in the arc guide groove and connected to one end of the spring, and the other end of the first support rod and the second support rod are rotatably connected to the clamp.

2. The buffer structure of the precision fixture according to claim 1, characterized in that: Both ends of the connecting shaft are rotatably connected to the first support rod and the second support rod, and the first support rod and the second support rod are arranged crosswise.

3. The buffer structure of the precision fixture according to claim 1, characterized in that: It also includes a support member, which is arranged in the mounting groove and is located between the first baffle plate and the second baffle plate, and one end of the support member is connected to the middle part of the connecting shaft.

4. The buffer structure of the precision fixture according to claim 1, characterized in that: A first notch and a second notch are provided on one side of the clamping jaw at positions facing the first support rod and the second support rod, the other end of the first support rod is arranged in the first notch, and the other end of the second support rod is arranged in the second notch.

5. The buffer structure of the precision fixture according to claim 4, characterized in that: It also includes a first rotating shaft and a second rotating shaft, the other end of the first support rod is connected to the inner walls on both sides of the first slot through the first rotating shaft, and the other end of the second support rod is connected to the inner walls on both sides of the second slot through the second rotating shaft.

6. The buffer structure of the precision fixture according to claim 1, characterized in that: The connecting member includes a first fixing rod and a second fixing rod, one end of the first fixing rod is connected to the first support rod or the second support rod, the other end of the first fixing rod is connected to the second fixing rod, the second fixing rod is located in the arc guide groove and connected to the spring, wherein the diameter of the first fixing rod is smaller than the diameter of the second fixing rod.

Images