Horizontal lathe clamping chuck

Abstract

The utility model relates to the field of lathe clamping tools, in particular to a horizontal lathe clamping chuck which is characterized in that inserting grooves are formed in the ends, facing the axis of a chuck body, of clamping jaws, inserting plates are inserted into the inserting grooves, the ends, away from the bottom walls of the inserting grooves, of the inserting plates are fixedly connected with connecting plates, and the connecting plates are perpendicular to the inserting plates; a fixing plate is fixedly connected to the end, away from the inserting plate, of the connecting plate, the fixing plate abuts against the top face of the clamping jaw, a fixing assembly is arranged between the fixing plate and the clamping jaw, and the fixing assembly is used for fixing the relative position between the fixing plate and the clamping jaw; the side face, away from the clamping jaw, of the connecting plate is fixedly connected with an arc-shaped clamping block, the clamping block is bent towards the direction where the clamping jaw is located, a fixing notch is formed in the position, facing the disc body, of the clamping block and penetrates through the end of the clamping block, the section of the fixing notch is arranged in a quarter arc shape, and the clamping effect of the clamping jaw on the disc-shaped workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe clamping tools, in particular to a clamping chuck for a horizontal lathe. Background Art

[0002] The horizontal lathe is a common mechanical parts processing equipment. It can perform cutting processing on shafts, discs, rings and other parts. It is simple to operate and easy to use, and has a wide range of uses in the mechanical processing industry.

[0003] When processing, the existing horizontal lathe usually uses a clamping mechanism to clamp the workpiece. The clamping mechanism currently used is usually a three-jaw chuck. The existing three-jaw chuck structure usually includes a disc body, in which there are three claws slidably connected, and an insertion hole is opened in the disc body. The three claws are radially arranged with the insertion hole as the center. When in use, the worker places the workpiece to be briefly processed in the insertion hole, and then the three claws move simultaneously in the direction of the insertion hole, and the three claws clamp the workpiece on the side of the disc body.

[0004] The above prior art has the following defects:

[0005] The existing clamping jaws are usually arranged in a long strip shape, so that when the clamping jaws clamp the workpiece, the way of contact between the clamping jaws and the workpiece is point contact. When clamping a disc-shaped workpiece, since the circumferential side surfaces of the disc-shaped workpiece are arranged in an arc-shaped surface, the clamping and fixing effect of the workpiece is easy to be unsatisfactory, causing the workpiece to shake or deviate during the processing, affecting the processing effect. Utility Model Content

[0006] The utility model aims to provide a clamping chuck for a horizontal lathe, so as to improve the clamping effect of the clamping claws on the disc-shaped workpiece and solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0008] A clamping chuck for a horizontal lathe comprises a cylindrical disc body, three claws are arranged on the end surface of the disc body, an insertion groove is provided on the end of each claw facing the axis of the disc body, a plug-in plate is inserted in the insertion groove, a connecting plate is fixedly connected to the end of the plug-in plate away from the bottom wall of the insertion groove, the connecting plate is perpendicular to the plug-in plate, a fixing plate is fixedly connected to the end of the connecting plate away from the plug-in plate, the fixing plate abuts against the top surface of the claws, a fixing assembly is arranged between the fixing plate and the claws, and the fixing assembly is used to fix the relative position between the fixing plate and the claws; an arc-shaped clamping block is fixedly connected to the side of the connecting plate away from the claws, the clamping block is bent toward the direction where the claws are located, a fixing notch is provided at the position of the clamping block facing the disc body, the fixing notch penetrates the end of the clamping block, and the cross-section of the fixing notch is arranged in the shape of a quarter arc.

[0009] As a preferred embodiment of the utility model, the fixing assembly includes a fixing hole opened on the claw, a fixing plate covers the fixing hole, a fixing bolt is connected in the fixing hole, the fixing bolt passes through the fixing plate and is threadedly connected to the fixing hole, and the fixing bolt presses the fixing plate onto the claw.

[0010] As a preferred embodiment of the utility model, the width of the fixing plate is equal to the width of the surface of the claw away from the disk body, and a locking clamp is provided at the position of the claw close to the connecting plate. The locking clamp is provided in a right-angle C shape, and the locking clamp presses the side of the fixing plate away from the claw. The side of the locking clamp abuts against the side of the claw, and an auxiliary bolt is threadedly connected to the side of the claw. The auxiliary bolt passes through the locking clamp and is threadedly connected to the claw, and the auxiliary bolt presses the locking clamp.

[0011] As a preferred embodiment of the present invention, a friction increasing component is arranged at a position of the fixed notch away from the disc body, and the friction increasing component increases the surface roughness in the fixed notch.

[0012] As a preferred embodiment of the present invention, the friction-increasing component comprises a circular friction-increasing depression provided in the fixed notch, and circular friction-increasing particles are fixedly connected to the friction-increasing depression.

[0013] As a preferred embodiment of the present invention, a plurality of friction-increasing components are provided, and the plurality of friction-increasing components are evenly distributed along the friction-increasing notch.

[0014] Beneficial Effects

[0015] The beneficial effects of the utility model are:

[0016] When clamping a disc-shaped workpiece, the arc-shaped clamping block can fit more closely with the circumferential side of the workpiece, and the fixed notch in the clamping block can increase the contact area between the workpiece and the clamping block, thereby further improving the stability of the workpiece. In addition, the insertion plate cooperates with the fixing effect of the fixing component on the fixed plate through the constraint effect of the insertion groove, so that the fixed plate and the plug-in plate provide fixed constraints on both ends of the connecting plate, so that the connecting plate can provide a stable fixing effect on the clamping block, further improving the fixing stability of the workpiece between the clamping jaws, improving the processing quality, and achieving the goal of improving the clamping effect of the clamping jaws on the disc-shaped workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the end face of the disk;

[0019] Figure 2 A cross-sectional view showing the structure of a single claw;

[0020] Figure 3 for Figure 2 A magnified view of the structure in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Disk body; 11. Clamping claw; 12. Insertion slot; 2. Plug-in plate; 21. Connecting plate; 22. Fixing plate; 3. Fixing assembly; 31. Fixing hole; 32. Fixing bolt; 4. Positioning block; 41. Fixing notch; 5. Locking clip; 51. Auxiliary bolt; 6. Friction-increasing assembly; 61. Friction-increasing depression; 62. Friction-increasing particles. DETAILED DESCRIPTION

[0023] 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 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] See also Figure 1-3As shown, a horizontal lathe clamping chuck includes a cylindrical disk body 1, three claws 11 are arranged on the end surface of the disk body 1, an insertion groove 12 is opened on the end of each claw 11 facing the axis of the disk body 1, a plug-in board 2 is inserted into the insertion groove 12, and the end of the plug-in board 2 away from the bottom wall of the insertion groove 12 is fixedly connected with a connecting plate 21, the connecting plate 21 is perpendicular to the plug-in board 2, and the end of the connecting plate 21 away from the plug-in board 2 is fixedly connected with a fixing plate 22, the fixing plate 22 abuts against the top surface of the claw 11, and the width of the fixing plate 22 is equal to the width of the surface of the claw 11 away from the disk body 1, a fixing component 3 is arranged between each fixing plate 22 and the corresponding claw 11, and each fixing component 3 includes a fixing hole 31 opened on the corresponding claw 11, and the fixing plate 22 covers the fixing hole 31 The fixing hole 31 is connected with a fixing bolt 32, and the fixing bolt 32 passes through the fixing plate 22 and is threadedly connected to the fixing hole 31. The fixing bolt 32 presses the fixing plate 22 on the claw 11, thereby fixing the fixing plate 22 on the claw 11. After the plug-in slot abuts against the plug-in plate 2, the plug-in slot can provide a constraint for the plug-in plate 2. Because one end of the connecting plate 21 is fixedly connected to the plug-in plate 2, and the other end is connected to the plug-in plate 2, the constraint effect of the plug-in plate 2 and the fixing effect of the fixing plate 22 can be transmitted to the connecting plate 21, so that the connecting plate 21 can be fixed at the end of the claw 11 without shaking, which is convenient for improving the structural stability of the connecting plate 21 in use, and is also beneficial for the connecting plate 21 to resist the centrifugal force generated when the disk body 1 rotates, thereby improving the stability of use.

[0025] See also Figure 1-3 As shown, a locking clip 5 is provided at a position of the claw 11 close to the connecting plate 21. The locking clip 5 is provided in a right-angle C shape. The locking clip 5 presses the side of the fixing plate 22 away from the claw 11. The side of the locking clip 5 abuts against the side of the claw 11. An auxiliary bolt 51 is threadedly connected to the side of the claw 11. The auxiliary bolt 51 penetrates the locking clip 5 and is threadedly connected to the claw 11. The auxiliary bolt 51 presses the locking clip 5.

[0026] See also Figure 1-3 As shown, an arc-shaped positioning block 4 is fixedly connected to the side of the connecting plate 21 away from the claw 11, and the positioning block 4 is bent toward the direction where the claw 11 is located. A fixed notch 41 is provided at the position of the positioning block 4 facing the disk body 1. The fixed notch 41 penetrates the end of the positioning block 4, and the cross section of the fixed notch 41 is set in a quarter arc shape. A friction-increasing component 6 is provided at the position of the fixed notch 41 away from the disk body 1. There are multiple friction-increasing components 6, and the multiple friction-increasing components 6 are evenly distributed along the friction-increasing notch. Each friction-increasing component 6 includes a circular friction-increasing recess 61 provided in the fixed notch 41, and a circular friction-increasing particle 62 is fixedly connected in the friction-increasing recess 61. The surface roughness in the fixed notch 41 is increased by multiple friction-increasing components 6, and the connection stability between the workpiece and the claw 11 is further increased.

[0027] A specific application of this embodiment is:

[0028] When the workpiece of the disk body 1 is not required, the disk body 1 and the claw 11 select the conventional three-point clamping method. If the end face of the disk-shaped workpiece needs to be processed, the worker first takes the clamping strip with the connecting plate 21 to the position of the claw 11, and then quickly distinguishes the fixed plate 22 and the plug-in plate 2 by the width of the plate, and at the same time determines that the fixing notch 41 faces the side where the disk body 1 is located. Then, the worker inserts the plug-in plate 2 into the plug-in slot. During the insertion of the plug-in plate, the fixed plate 22 is driven to cover the fixing hole 31 opened on the claw 11. The worker presses the fixed plate 22 with the fixing bolt 32. Finally, the worker clamps the locking clamp 5 on both sides of the claw 11 from the top of the fixed plate 22, and then fixes the locking clamp 5 on the side of the claw 11 with the auxiliary bolt 51. The locking clamp 5 provides constraints on both sides of the fixed plate 22 to prevent the fixed plate 22 from being offset due to the large centrifugal force generated when the disk body 1 rotates, further improving the stability effect during fixation.

[0029] After installation, the positioning strip abuts against the side of the disc body 1. If the thickness is less than the maximum width of the fixed notch 41, the workpiece does not enter the fixed notch 41. The positioning strip can provide surface contact with the circumferential side of the workpiece through its own arc structure, thereby increasing the contact area and thus increasing the area constrained on the side of the workpiece, so that the workpiece can be more stably fixed between the three claws 11, which is convenient for processing. If the thickness of the disc-shaped workpiece is thin, the workpiece is inserted into the fixed notch 41, and the friction-increasing component 6 abuts against the surface of the workpiece, while providing a clamping effect on the surface of the workpiece, thereby further improving the stability of the workpiece fixation, facilitating stable processing, reducing processing errors and processing deviations caused by the shaking of the workpiece, and improving the processing quality. In summary, through the above steps, the clamping effect of the claws 11 on the disc-shaped workpiece is improved.

[0030] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A horizontal lathe clamping chuck, comprising a cylindrical chuck body (1), three claws (11) are arranged on the end surface of the chuck body (1), characterized in that: An insertion slot (12) is provided on the end of each of the clamping claws (11) facing the axis of the disk body (1), a plug-in board (2) is inserted into the insertion slot (12), an end of the plug-in board (2) away from the bottom wall of the insertion slot (12) is fixedly connected to a connecting plate (21), the connecting plate (21) is perpendicular to the plug-in board (2), an end of the connecting plate (21) away from the plug-in board (2) is fixedly connected to a fixing plate (22), the fixing plate (22) abuts against the top surface of the clamping claw (11), and the fixing plate (22) and the clamping claw (11) are connected. A fixing assembly (3) is arranged between the fixing plate (22) and the claw (11), and the fixing assembly (3) is used to fix the relative position between the fixing plate (22) and the claw (11); an arc-shaped clamping block (4) is fixedly connected to the side of the connecting plate (21) away from the claw (11), the clamping block (4) is bent in the direction where the claw (11) is located, and a fixing notch (41) is provided at the position of the clamping block (4) facing the disk body (1), the fixing notch (41) passes through the end of the clamping block (4), and the cross section of the fixing notch (41) is arranged in the shape of a quarter arc.

2. The horizontal lathe clamping chuck according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing hole (31) formed on the clamping claw (11); a fixing plate (22) covers the fixing hole (31); a fixing bolt (32) is connected to the fixing hole (31); the fixing bolt (32) penetrates the fixing plate (22) and is threadedly connected to the fixing hole (31); the fixing bolt (32) presses the fixing plate (22) onto the clamping claw (11).

3. The horizontal lathe clamping chuck according to claim 1, characterized in that: The width of the fixing plate (22) is equal to the width of the surface of the clamping claw (11) away from the disc body (1). A locking clamp (5) is arranged at a position of the clamping claw (11) close to the connecting plate (21). The locking clamp (5) is arranged in a right-angle C shape. The locking clamp (5) presses the side of the fixing plate (22) away from the clamping claw (11). The side surface of the locking clamp (5) abuts against the side surface of the clamping claw (11). An auxiliary bolt (51) is threadedly connected to the side surface of the clamping claw (11). The auxiliary bolt (51) penetrates the locking clamp (5) and is threadedly connected to the clamping claw (11). The auxiliary bolt (51) presses the locking clamp (5).

4. The horizontal lathe clamping chuck according to claim 1, characterized in that: A friction-increasing component (6) is arranged at a position of the fixed notch (41) away from the disc body (1), and the friction-increasing component (6) increases the surface roughness in the fixed notch (41).

5. The horizontal lathe clamping chuck according to claim 4, characterized in that: The friction-increasing component (6) comprises a circular friction-increasing recess (61) provided in the fixing notch (41), and circular friction-increasing particles (62) are fixedly connected in the friction-increasing recess (61).

6. The horizontal lathe clamping chuck according to claim 5, characterized in that: The friction-increasing components (6) are provided in plurality, and the plurality of friction-increasing components (6) are evenly distributed along the friction-increasing notch.

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