Clamping tool for workpiece grinding and polishing

Abstract

The utility model relates to the technical field of metal workpiece polishing, in particular to a clamping tool for workpiece grinding and polishing, which comprises a bottom plate and the like. The bottom plate is a mounting carrier of the clamping tool; the device comprises a bottom plate and further comprises two mounting frames, guide rods, clamping plates, a two-way lead screw, a servo motor and bearings, the two mounting frames are fixedly mounted on the bottom plate respectively, each mounting frame is a frame with four bent plates extending outwards from the four corners of a center frame body, the supporting lengths of the two mounting frames are different, and the two bent plates are arranged on the two sides of the two mounting frames. Vertically-arranged guide rods are fixedly arranged on the two side walls of the mounting frame, each guide rod is slidably connected with a set of clamping plates, and each set of clamping plates are distributed on the mounting frame on the two sides in a staggered mode. The two clamping plates on the two-way lead screw are driven by the servo motor to synchronously expand or contract, so that the clamping tool can adapt to octagonal pipes with different pipe diameters, the flexibility of equipment is improved, and the application range of the equipment is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal workpiece polishing technical field, concretely relates to a workpiece polishing clamping tool. BACKGROUND

[0002] In the mechanical processing and manufacturing industry, the octagonal pipe is widely applied in many fields such as building, mechanical structure and pipeline system owing to its unique geometric shape and excellent mechanical property, in order to ensure that the surface quality and precision of the octagonal pipe reach high standard, polishing and polishing process are indispensable.

[0003] The existing clamping device can usually only adapt to the octagonal pipe of specific size and shape, when facing different specifications of products, the corresponding clamp often needs to be replaced, which not only increases the production cost, but also prolongs the preparation time, and more importantly, in the polishing process, if clamping is not stable enough, the octagonal pipe can fly out, which brings serious safety hazard, the irregular shape of the octagonal pipe further increases the clamping difficulty, so that the problem is more complex, and the clamping tool for workpiece polishing is provided to solve the above problems in the prior art. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of the prior art, the utility model provides a clamping tool for workpiece polishing, so that the octagonal pipes of different sizes can be clamped stably.

[0005] The technical scheme is as follows: A clamping tool for workpiece polishing, comprising a bottom plate, which is the mounting carrier of the clamping tool; an installation frame, a guide rod, a clamping plate, a bidirectional screw rod, a servo motor and a bearing, the installation frame is provided with two and is fixedly installed on the bottom plate, the installation frame is a frame with four curved plates extending outwards from four corners of the central frame body, the support lengths of the two installation frames are different, vertical guide rods are fixedly arranged on the two side walls of the installation frame, a group of clamping plates are slidably connected to each guide rod, each group of clamping plates are distributed on the installation frames on the two sides in a staggered manner, the clamping plate is a bent hook-shaped clamp with a horizontal plate body extending out of an inclined plate body at one end, and the clamping plates in the same group are arranged in two layers, the inclined plates of the clamping plates face each other, the inclined plate of the clamping plate is a plate body for clamping an octagonal pipe workpiece, bearings are fixedly arranged on the top of the two side walls of the installation frame, the installation frame is rotatably connected with a bidirectional screw rod through the bearings, the bidirectional screw rods are parallel to and close to the corresponding guide rods on the same side, the bidirectional threads of the bidirectional screw rods are respectively threadedly connected with the corresponding clamping plates in the same group, servo motors are fixedly installed on the bottom of the two side walls of the installation frame, the output shafts of the servo motors are connected with the corresponding bidirectional screw rods on the same side, and the servo motor drives the two clamping plates on the bidirectional screw rod to be synchronously opened or contracted, so that the pipe wall of the octagonal pipe workpiece is clamped by the inclined plate bodies on the multiple groups of clamping plates in a staggered manner, thereby the clamping tool can adapt to the clamping of octagonal pipes with different diameters.

[0006] Preferably, support pads are arranged at the four corners of the bottom of the bottom plate, the support pads have a certain elasticity, and the support pads are used to improve the stability of the clamping tool after clamping the workpiece.

[0007] Preferably, rubber sheets are arranged on the inclined clamping contact surfaces of the clamping plates, the rubber sheets are used to directly contact and limit the pipe wall of the octagonal pipe workpiece, improve the stability of clamping the octagonal pipe workpiece, and avoid the appearance of clamping marks and other losses on the surface of the workpiece when the clamping plates clamps the octagonal pipe workpiece.

[0008] Preferably, upwardly curved protective shells one are fixedly connected to the two side walls of the bottom plate in a symmetrical manner, protective shell two is fixedly connected between the two protective shells one, the protective shell two covers the periphery of the two installation frames, the protective shell one and the protective shell two form a protective frame body covering the periphery of the clamping tool, and the protective shell one and the protective shell two are used to improve the safety during clamping the workpiece.

[0009] Preferably, the protective shell one and the protective shell two are provided with observation windows, the observation windows are made of transparent material and are convenient for the operator to directly observe the clamping state of the workpiece.

[0010] As preferred, a reinforcing column is fixed between the mounting frame and the protective shell, which can reinforce the mounting frame from the top, further improving the support stability of the mounting frame.

[0011] Beneficial effects are: 1, the utility model discloses a synchronous opening or contraction of two clamping plates on the bidirectional screw rod driven by the servo motor, so that the clamping tool can adapt to the octagonal pipe of different pipe diameters, and the flexibility and application range of the equipment are increased.

[0012] 2, the elastic supporting pad arranged at the four corners of the bottom plate can improve the stability after clamping, the protective frame body formed by the protective shell one and the protective shell two, and the reinforcing column enhance the safety of the overall structure and provide additional support for the mounting frame. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Figure 2 It is a three-dimensional structure schematic view of the bottom plate, mounting frame, guide rod and clamping plate of the utility model.

[0015] Figure 3 It is a cooperation relationship diagram of the mounting frame, bidirectional screw rod, servo motor and rubber sheet of the utility model.

[0016] Figure 4 It is a three-dimensional structure schematic view of the protective shell one, mounting frame and reinforcing column of the utility model.

[0017] In the drawing mark: 1-bottom plate, 101-supporting pad, 2-mounting frame, 3-guide rod, 4-clamping plate, 5-octagonal pipe, 6-bidirectional screw rod, 7-servo motor, 8-bearing, 9-rubber sheet, 10-protective shell one, 11-protective shell two, 12-observation window, 13-reinforcing column. DETAILED DESCRIPTION

[0018] The embodiments of the utility model will be described in detail below with reference to the drawings. In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below with reference to the drawings. Only this statement, the up, down, left, right, front, back, inside, outside and other directions of the utility model appearing or about to appear in the text, only with the drawings of the utility model as the base, it is not the specific limitation of the utility model.

[0019] A clamping tool for workpiece grinding and polishing, such as Figures 1-4As shown, including the base plate 1, the base plate 1 is the installation carrier of the present clamping tool, the bottom of the base plate 1 is provided with support pad 101 at four corners, the support pad 101 has certain elasticity, the support pad 101 is used to improve the stability of the clamping tool after clamping the workpiece; It also includes mounting frame 2, guide rod 3, clamping plate 4, two-way screw 6, servo motor 7 and bearing 8, the mounting frame 2 is provided with two and is respectively fixedly installed on the base plate 1, the mounting frame 2 is the frame of four curved plates extending outwards from the four corners of the center frame body, the support length of the two mounting frames 2 is different, the two side walls of the mounting frame 2 are fixedly provided with vertically arranged guide rods 3, a group of clamping plates 4 are slidably connected to each guide rod 3, each group of clamping plates 4 are distributed on the two side mounting frames 2, the clamping plate 4 is a horizontal plate body extending into a bent hook-shaped clamp with an inclined plate body, and the same group of clamping plates 4 are arranged in two upper and lower groups, the inclined plates of the clamping plates 4 are oppositely directed, the inclined plate of the clamping plate 4 is the plate body for clamping the octagonal pipe 5 workpiece, the top of the two sides of the mounting frame 2 is fixedly provided with a bearing 8, the mounting frame 2 is rotatably connected with a two-way screw 6 through the bearing 8, the two-way screw 6 is parallel to and close to the corresponding guide rod 3 on the same side, the two-way screw thread of the two-way screw 6 is respectively threadedly matched with the corresponding clamping plate 4 in the same group, the two sides of the mounting frame 2 are further fixedly provided with a servo motor 7, the output shaft of the servo motor 7 is connected with the corresponding two-way screw 6 on the same side, the servo motor 7 drives the two clamping plates 4 on the two-way screw 6 to synchronously open or contract, so that the pipe wall of the octagonal pipe 5 workpiece is clamped by the inclined plate bodies of the multiple groups of clamping plates 4, so that the present clamping tool can adapt to the clamping of octagonal pipes 5 with different diameters.

[0020] As shown in Figure 2 and Figure 3 , the inclined clamping contact surface of the clamping plate 4 is provided with a rubber sheet 9, the rubber sheet 9 is used for directly contacting and limiting the pipe wall of the octagonal pipe 5 workpiece, improving the stability of clamping the octagonal pipe 5 workpiece, and avoiding the hard clamping of the clamping plate 4 on the octagonal pipe 5 workpiece, so as to avoid the appearance of clamping marks on the surface of the workpiece and other losses.

[0021] As shown in Figure 1 and Figure 4 , the two side walls of the base plate 1 are symmetrically fixedly connected with the upwardly curved protective shell one 10, the two protective shell ones 10 are transversely fixedly connected with the protective shell two 11, the protective shell two 11 covers the periphery of the two mounting frames 2, the protective shell one 10 and the protective shell two 11 form a protective frame covering the periphery of the clamping tool, the protective shell one 10 and the protective shell two 11 are used to improve the safety during clamping the workpiece; It also includes an observation window 12, the side walls of the protective shell one 10 and the protective shell two 11 are provided with an observation window 12, the observation window 12 is made of transparent material and is convenient for the operator to directly observe the clamping state of the workpiece.

[0022] As shown in Figure 4As shown, reinforcing columns 13 are fixed between the mounting frame 2 and the protective shell 11, and the reinforcing columns 13 can reinforce the mounting frame 2 from the top, further improving the support stability of the mounting frame 2.

[0023] When the octagonal pipe 5 workpiece is clamped by the clamping tool, first, the clamping tool is placed on the workbench, and the elastic support pads 101 arranged at the four corners of the bottom plate 1 can improve the stability of the entire device during clamping operation. The octagonal pipe 5 to be processed is sequentially inserted through the multiple groups of clamping plates 4. When different diameters of octagonal pipes 5 need to be clamped, the servo motor 7 drives the bidirectional screw rod 6 to rotate. When the bidirectional screw rod 6 rotates, the two clamping plates 4 in the same group will shrink to the center to adapt to the smaller diameter of the octagonal pipe 5, or expand outward to adapt to the larger diameter of the octagonal pipe 5. Since each group of clamping plates 4 is composed of a horizontal plate body and an inclined plate body extending from one end, these clamping plates 4 are staggered and arranged on the two mounting frames 2, and the inclined plates of the clamping plates 4 are oppositely oriented. The rubber sheet 9 on the clamping plate 4 can directly contact and stably clamp the diagonal surface of the outer pipe wall of the octagonal pipe 5, while avoiding surface damage caused by hard contact and providing additional clamping friction. In order to protect the safety of the operator, the clamping tool is provided with a protective frame composed of a protective shell 10 and a protective shell 11. The protective shell 10 is connected with the protective shell 11 and covers the periphery of the two mounting frames 2. The reinforcing column 13 is connected between the mounting frame 2 and the protective shell 11, which ensures the stability and durability of the overall structure of the clamping tool. At the same time, an observation window 12 made of transparent material is arranged on the side wall of the protective shell, which allows the operator to conveniently and real-time monitor the clamping state of the workpiece.

[0024] The above is only an embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields based on the content of the present application, is also included in the patent protection range of the present application.

Claims

1. A clamping fixture for workpiece grinding and polishing, comprising a base plate (1); characterized in that, It also includes a mounting frame (2), guide rods (3), clamping plates (4), a two-way lead screw (6), a servo motor (7), and bearings (8). Two mounting frames (2) are provided and fixedly mounted on the base plate (1). The mounting frame (2) is a frame with four curved plates extending outward from the four corners of the central frame. Vertically arranged guide rods (3) are fixed on both sides of the mounting frame (2). Each guide rod (3) is slidably connected to a set of clamping plates (4). Each set of clamping plates (4) is staggered on the mounting frames (2) on both sides. Each clamping plate (4) is a hook-shaped clamp with one end of a horizontal plate extending into an inclined plate. The clamping plates (4) in the same set are... The mounting bracket (2) is set up with two plates distributed vertically. The inclined plates on the clamping plate (4) face each other. The inclined plates of the clamping plate (4) are plates for clamping the octagonal tube (5) workpiece. The top of both sides of the mounting bracket (2) are fixedly provided with bearings (8). The mounting bracket (2) is rotatably connected to a two-way lead screw (6) through the bearings (8). The two-way lead screw (6) is parallel to and close to the corresponding guide rod (3) on the same side. The two-way threads of the two-way lead screw (6) are respectively adapted to the threads of the corresponding clamping plate (4) in the same group. The bottom of both sides of the mounting bracket (2) is also fixedly installed with a servo motor (7). The output shaft of the servo motor (7) is connected to the corresponding two-way lead screw (6) on the same side.

2. The workpiece grinding and polishing fixture according to claim 1, characterized in that, The bottom of the base plate (1) is provided with support pads (101) at the four corners, and the support pads (101) have a certain elasticity.

3. The workpiece grinding and polishing fixture according to claim 2, characterized in that, Rubber sheets (9) are provided on the inclined clamping contact surfaces of the clamping plates (4), and the rubber sheets (9) are used to make direct contact with the tube wall of the octagonal tube (5) workpiece for limiting positioning.

4. The workpiece grinding and polishing fixture according to claim 3, characterized in that, The base plate (1) has two symmetrically fixed upward-curved protective shells (10) on its two side walls. A protective shell (11) is fixed across the two protective shells (10). The protective shell (11) covers the periphery of the two mounting brackets (2). The protective shells (10) and (11) form a protective frame covering the periphery of the clamping fixture. The protective shells (10) and (11) are used to improve the safety when clamping the workpiece.

5. The workpiece grinding and polishing fixture according to claim 4, characterized in that, It also includes an observation window (12), and the observation window (12) is provided on the side wall of both the first protective shell (10) and the second protective shell (11). The observation window (12) is made of transparent material.

6. The workpiece grinding and polishing fixture according to claim 5, characterized in that, A reinforcing column (13) is fixedly connected between the mounting frame (2) and the second protective shell (11), and the reinforcing column (13) can reinforce the mounting frame (2) from the top.

Images