Positioning clamp convenient to disassemble and replace

Abstract

The utility model relates to the technical field of clamps, and discloses a positioning clamp convenient to disassemble and replace, which comprises a fixed seat and a clamp main body, and a disassembly and assembly mechanism is arranged between the clamp main body and the fixed seat; the dismounting and mounting mechanism comprises a connecting plate and a screw rod, a positioning column is fixedly mounted at the top end of the fixing seat, positioning holes are formed in the positions, close to the four corners, of the clamp body, the positioning column movably penetrates through the positioning holes, and one end of the screw rod is rotationally connected to one side of the clamp body through a bearing. The clamp body can be detached and replaced by personnel conveniently, so that the working efficiency of the personnel is improved, the stability of the clamp body during installation is guaranteed, and the problems that most existing positioning clamps are fixed to a machine table through fastening bolts, specific wrench tools are needed during disassembly and assembly, and after repeated detachment and replacement, the clamp body cannot be detached and replaced easily are solved. And the problem that the working efficiency of personnel is affected due to the fact that the fastening bolt and a threaded hole formed in the positioning clamp are abraded and follow-up dismounting and replacement are difficult is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a positioning clamp which is easy to disassemble and replace. Background Art

[0002] A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or testing. It can be used to install the workpiece quickly, conveniently and safely. Each type of workpiece requires a different fixture device to fix it in the corresponding position.

[0003] Most existing positioning fixtures are fixed to the machine table with fastening bolts, which require specific wrench tools for disassembly and assembly. Moreover, after multiple disassembly and replacement, the fastening bolts and the threaded holes on the positioning fixture will wear out, making subsequent disassembly and replacement difficult, thereby affecting the work efficiency of the personnel. To this end, we propose a positioning fixture that is easy to disassemble and replace. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning fixture that is easy to disassemble and replace, thereby solving the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning fixture that is easy to disassemble and replace, comprising a fixing seat and a fixture body, wherein a disassembly mechanism is provided between the fixture body and the fixing seat;

[0006] The disassembly and assembly mechanism includes a connecting plate and a screw, a positioning column is fixedly installed on the top of the fixing seat, and the clamp body is provided with positioning holes near the four corners, and the positioning column movably passes through the positioning hole, one end of the screw is rotatably connected to one side of the clamp body through a bearing, the connecting plate is threadedly sleeved on the outer wall of the screw, and the other end of the screw is fixedly installed with a knob, and a clamping plate is fixedly installed on the inner side of the connecting plate on one side of the positioning column, and a second card slot is provided on the outer wall of the positioning column, and the card plate is clamped in the second card slot, and a limiting rod is fixedly installed on one side of the clamp body, and a rod hole is provided on the connecting plate, and the limiting rod movably passes through the rod hole.

[0007] Preferably, there are two limit rods on one side of the clamp body, and the limit rods are adapted to the rod holes. By setting the limit rods, the connecting plate can be limited, which can prevent the connecting plate from rotating with the screw rod and ensure the normal use of the connecting plate.

[0008] Preferably, a rotation groove is provided on the outer side of the connecting plate, a connecting shaft is fixedly installed on the inner wall of the rotation groove, a card slot 1 is provided on the outer wall of the knob, a card strip is clamped in the card slot 1, an axis hole is provided near one end of the card strip, the card strip is movably sleeved on the outer wall of the connecting shaft through the axis hole, a torsion spring is fixedly connected between the outer wall of the connecting shaft and the inner wall of the axis hole, and by setting the card strip, the card strip can be clamped into the card slot 1, thereby limiting the knob and ensuring the stability of the card plate in the card slot 2.

[0009] Preferably, a support ring is movably provided on the outer wall of the positioning column, a support rod is fixedly installed on the bottom end of the support ring, a rod groove is opened on the top of the fixing seat, the support rod is inserted into the rod groove, a spring is surrounded by the outer wall of the support rod, the spring is fixedly installed between the bottom end of the support ring and the top end of the fixing seat, and the support ring is in contact with the bottom end of the clamp body.

[0010] Preferably, the number of the support rods on the support ring is four, and the rod grooves are filled with damping oil. By filling the rod grooves with damping oil, a damping effect can be exerted on the support rods.

[0011] Preferably, a support pad is fixedly installed on the top end of the fixing seat, and the support pad is in contact with the bottom end surface of the fixing seat.

[0012] The utility model provides a positioning fixture that is easy to disassemble and replace. The positioning fixture that is easy to disassemble and replace has the following beneficial effects:

[0013] (1) The positioning fixture that is easy to disassemble and replace can facilitate personnel to disassemble and replace the fixture body by providing a disassembly and assembly mechanism, thereby improving the work efficiency of personnel and ensuring the stability of the fixture body during installation. It solves the problem that most existing positioning fixtures are fixed to the machine table with fastening bolts, and special wrench tools are required for disassembly and assembly. Moreover, after multiple disassembly and replacement, the fastening bolts and the threaded holes on the positioning fixture will wear out, making subsequent disassembly and replacement difficult, thereby affecting the work efficiency of personnel;

[0014] (2) The positioning fixture, which is easy to disassemble and replace, can play a certain shock-absorbing role when the fixture is processing the workpiece through the cooperation of the support ring, rod groove, support rod, spring and support pad, thereby improving the stability of the workpiece during processing and reducing the wear of the processed parts caused by vibration. It has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front cross-sectional structural diagram of the present utility model;

[0017] Figure 3 This is a schematic diagram of the partial structure of the top cross-section of the connecting plate of the utility model;

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0019] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure of the middle B part;

[0020] Figure 6 For this utility model Figure 3 Schematic diagram of the enlarged structure of part C in the middle.

[0021] In the figure: 1. Fixed seat; 2. Clamp body; 3. Disassembly and assembly mechanism; 4. Support ring; 5. Rod groove; 6. Support rod; 7. Spring; 8. Support pad; 301. Connecting plate; 302. Screw; 303. Knob; 304. Card bar; 305. Rotating groove; 306. Connecting shaft; 307. Shaft hole; 308. Card slot 1; 309. Card plate; 310. Card slot 2; 311. Positioning column; 312. Positioning hole; 313. Limiting rod; 314. Rod hole; 315. Torsion spring. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] The positioning fixture provided by the present invention is preferably implemented as follows: Figures 1 to 6 As shown: A positioning fixture that is easy to disassemble and replace, including a fixing base 1 and a fixture body 2, and a disassembly mechanism 3 is provided between the fixture body 2 and the fixing base 1;

[0027] The disassembly and assembly mechanism 3 includes a connecting plate 301 and a screw 302. A positioning column 311 is fixedly installed on the top of the fixing seat 1. Positioning holes 312 are opened near the four corners of the clamp body 2. The positioning column 311 movably passes through the positioning hole 312. One end of the screw 302 is rotatably connected to one side of the clamp body 2 through a bearing. The connecting plate 301 is threadedly sleeved on the outer wall of the screw 302. A knob 303 is fixedly installed on the other end of the screw 302. A clamping plate 309 is fixedly installed on the inner side of the connecting plate 301 on one side of the positioning column 311. A second card slot 310 is opened on the outer wall of the positioning column 311. The clamping plate 309 is clamped in the second card slot 310. A limiting rod 313 is fixedly installed on one side of the clamp body 2. A rod hole 314 is opened on the connecting plate 301. The limiting rod 313 movably passes through the rod hole 314.

[0028] The above technical solution is specifically as follows: when the positioning fixture that is easy to disassemble and replace needs to be disassembled, the card strip 304 can be rotated, and the card strip 304 twists the torsion spring 315, so that the card strip 304 disengages from the card slot 1 308, so that the card strip 304 no longer limits the rotating plate. At this time, the knob 303 can be rotated, and the knob 303 rotates the screw 302, and the screw 302 drives the connecting plate 301 to move outward, and the connecting plate 301 drives the card plate 309 to move outward, so that the card plate 309 disengages from the card slot 2 310, so that the card plate 309 no longer limits the fixture body 2. At this time, the fixture body 2 can be lifted upward to make the positioning post 311 disengage from the positioning hole 312, thereby completing the disassembly of the fixture body 2, and then the new fixture body 2 can be installed on the fixing seat 1, so that the positioning post 311 is inserted into the positioning hole 312, and then the knob 303 is rotated in the opposite direction, and the knob 303 drives the screw When the second clamp body 2 is in the state of being replaced, the second clamp body 2 is fixed with the clamping bar 304, and the clamping bar 304 is locked in the first clamping slot 308 under the reset force of the torsion spring 315, thereby limiting the position of the knob 303 and completing the installation of the new clamp body 2. Through the above structure, it is convenient for personnel to disassemble and replace the clamp body 2, thereby improving the work efficiency of personnel and ensuring the stability of the clamp body 2 during installation, solving the problem that most existing positioning clamps are fixed on the machine table with fastening bolts, and special wrench tools are required for disassembly and assembly. Moreover, after multiple disassembly and replacement, the fastening bolts and the threaded holes on the positioning clamp will wear out, making subsequent disassembly and replacement difficult, thereby affecting the work efficiency of personnel.

[0029] Furthermore, there are two limiting rods 313 on one side of the clamp body 2, and the limiting rods 313 are adapted to the rod holes 314;

[0030] The limiting rod 313 is provided to limit the connecting plate 301 , thereby preventing the connecting plate 301 from rotating along with the screw rod 302 , thereby ensuring the normal use of the connecting plate 301 .

[0031] Furthermore, a rotation groove 305 is formed on the outer side of the connecting plate 301, and a connecting shaft 306 is fixedly mounted on the inner wall of the rotation groove 305. A clamping groove 308 is formed on the outer wall of the knob 303, and a clamping strip 304 is clamped in the clamping groove 308. The clamping strip 304 has an axial hole 307 formed near one end. The clamping strip 304 is movably sleeved on the outer wall of the connecting shaft 306 through the axial hole 307. A torsion spring 315 is fixedly connected between the outer wall of the connecting shaft 306 and the inner wall of the axial hole 307.

[0032] Among them, by providing the card strip 304, the card strip 304 can be inserted into the card slot 1 308, thereby limiting the knob 303 and ensuring the stability of the card plate 309 in the card slot 2 310.

[0033] Example 2:

[0034] On the basis of the first embodiment, the positioning fixture provided by the present invention is preferably implemented as follows: Figures 1 to 6 As shown: a support ring 4 is movably sleeved on the outer wall of the positioning column 311, a support rod 6 is fixedly installed on the bottom end of the support ring 4, a rod groove 5 is opened on the top of the fixed seat 1, the support rod 6 is inserted into the rod groove 5, and a spring 7 is surrounded on the outer wall of the support rod 6, and the spring 7 is fixedly installed between the bottom end of the support ring 4 and the top end of the fixed seat 1, the support ring 4 is in contact with the bottom end of the clamp body 2, and a support pad 8 is fixedly installed on the top end of the fixed seat 1, and the support pad 8 is in contact with the bottom surface of the fixed seat 1.

[0035] Specifically, the above technical solution is that when the workpiece on the fixture is being processed, the fixture will squeeze the support ring 4, the support ring 4 will squeeze the spring 7 and the support pad 8, the support ring 4 will drive the support rod 6 to move into the rod groove 5, and the support rod 6 will squeeze the damping oil. Through the above structure, the fixture can play a certain shock-absorbing role when processing the workpiece, improve the stability of the workpiece during processing, and reduce the wear of the processed parts caused by vibration. The structure is simple and practical.

[0036] Furthermore, the number of support rods 6 on the support ring 4 is four, and the rod grooves 5 are filled with damping oil;

[0037] The rod groove 5 is filled with damping oil, which can provide a damping effect on the support rod 6 .

[0038] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A positioning fixture that is easy to disassemble and replace, comprising a fixing seat (1) and a fixture body (2), characterized in that: A disassembly mechanism (3) is provided between the clamp body (2) and the fixing seat (1); The disassembly and assembly mechanism (3) includes a connecting plate (301) and a screw (302). A positioning column (311) is fixedly installed on the top of the fixing seat (1). Positioning holes (312) are opened near the four corners of the clamp body (2). The positioning column (311) movably passes through the positioning hole (312). One end of the screw (302) is rotatably connected to one side of the clamp body (2) through a bearing. The connecting plate (301) is threadedly sleeved on the outer wall of the screw (302). The other end of the screw (302) is screwed to the outer wall of the screw (302). A knob (303) is fixedly installed at one end, a clamping plate (309) is fixedly installed on the inner side of the connecting plate (301) on one side of the positioning column (311), a second clamping groove (310) is opened on the outer wall of the positioning column (311), and the clamping plate (309) is clamped in the second clamping groove (310), a limiting rod (313) is fixedly installed on one side of the clamp body (2), a rod hole (314) is opened on the connecting plate (301), and the limiting rod (313) movably passes through the rod hole (314).

2. The positioning fixture that is easy to disassemble and replace according to claim 1, characterized in that: There are two limiting rods (313) on one side of the clamp body (2), and the limiting rods (313) are adapted to the rod holes (314).

3. The positioning fixture that is easy to disassemble and replace according to claim 1, characterized in that: A rotation groove (305) is provided on the outer side of the connecting plate (301), a connecting shaft (306) is fixedly installed on the inner wall of the rotation groove (305), a clamping groove (308) is provided on the outer wall of the knob (303), a clamping strip (304) is clamped in the clamping groove (308), an axial hole (307) is provided near one end of the clamping strip (304), the clamping strip (304) is movably sleeved on the outer wall of the connecting shaft (306) through the axial hole (307), and a torsion spring (315) is fixedly connected between the outer wall of the connecting shaft (306) and the inner wall of the axial hole (307).

4. The positioning fixture that is easy to disassemble and replace according to claim 1, characterized in that: The outer wall of the positioning column (311) is movably sleeved with a support ring (4), the bottom end of the support ring (4) is fixedly mounted with a support rod (6), the top end of the fixing seat (1) is provided with a rod groove (5), the support rod (6) is inserted into the rod groove (5), the outer wall of the support rod (6) is surrounded by a spring (7), the spring (7) is fixedly mounted between the bottom end of the support ring (4) and the top end of the fixing seat (1), and the support ring (4) is in contact with the bottom end of the clamp body (2).

5. The positioning fixture that is easy to disassemble and replace according to claim 4, characterized in that: The number of support rods (6) on the support ring (4) is four, and the rod grooves (5) are filled with damping oil.

6. The positioning fixture that is easy to disassemble and replace according to claim 1, characterized in that: A support pad (8) is fixedly mounted on the top end of the fixing seat (1), and the support pad (8) is in contact with the bottom end surface of the fixing seat (1).

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