A double-head high-efficiency horizontal machine tool for machining shaft parts

Abstract

The present invention relates to the technical field of machine tools, and discloses a double-headed high-efficiency horizontal machine tool for processing shaft parts, including a clamping mechanism for clamping the shaft workpiece and a processing system for processing the shaft workpiece. The processing system can improve the processing efficiency of the shaft parts, realize one-time processing of multiple processes, save processing costs and processing time, and at the same time, its structural design is reasonable, positioning is accurate, processing accuracy is high, and product qualification rate is improved. In addition, the machine tool has a high degree of automation, is easy to operate, reduces human resource requirements, and is suitable for the needs of modern intelligent manufacturing production lines.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, and in particular to a double-head high-efficiency horizontal machine tool for machining shaft parts. Background Art

[0002] Machine tools are common parts processing equipment. When processing shaft parts, a three-jaw chuck is generally used to clamp the shaft parts. However, this method requires the shaft parts to be inserted into the three-jaw chuck, which requires a certain amount of space. It is very inconvenient if the shaft parts are too long. In addition, in the existing three-jaw chuck technology, the shaft parts are generally clamped by claws. The claws are generally an integrated structure and cannot be retracted. Therefore, the clamping range is relatively small and needs to be improved. Based on this, the present invention proposes a double-headed, high-efficiency horizontal machine tool for processing shaft parts. Summary of the invention

[0003] In order to solve the problem mentioned in the above background that shaft parts are too long and inconvenient to clamp and the problem that the clamping range of existing three-jaw chuck technology is relatively small, the present invention provides a double-head high-efficiency horizontal machine tool for processing shaft parts.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0005] A double-head high-efficiency horizontal machine tool for processing shaft parts, including a clamping mechanism for clamping the shaft workpiece and a processing system for processing the shaft workpiece, the processing system is provided with two groups and respectively located at the two ends of the clamping mechanism, the clamping mechanism includes a base installed on the machine tool bed, a clamping assembly and a linear module for driving the clamping assembly to move are slidably installed on the base, the clamping assembly includes a clamping seat installed on the base, a clamping unit is installed on the clamping seat, the clamping seat is in the shape of an annular frame, a notch is provided at the upper end of the clamping seat, and a plurality of groups of clamping units are arranged in an array along the circumferential direction, and the axis center line of the array circle is parallel to the sliding direction of the clamping assembly;

[0006] The clamping units are distributed along the radial direction of the array circle. One end of the clamping unit is fixed to the inner ring surface of the clamp seat and is provided with a hydraulic nozzle, and the other end is close to the axis of the array circle and is provided with a clamp. The clamping unit includes a plurality of clamping sections in the shape of a cylindrical barrel. Among two adjacent clamping sections, the clamping section close to the axis of the array circle is sleeved in the clamping section away from the axis of the array circle. The hydraulic nozzles in all the clamping units are connected by oil pipelines, and the ends of the oil pipelines are connected to the hydraulic system.

[0007] As a further improvement and optimization of the present invention, an inner step is provided at one end of the clamping section facing the axis centerline of the array circle, and an outer step is provided at one end of the clamping section away from the axis centerline of the array circle.

[0008] As a further improvement and optimization of the present invention, two groups of clamp assemblies are arranged along the sliding direction, and two groups of linear modules are arranged correspondingly.

[0009] As a further improvement and optimization of the present invention, three groups of clamping units are provided, which are a vertically arranged bottom clamping unit and two groups of side clamping units located on the upper sides of the bottom clamping unit. A synchronization unit is provided between the side clamping unit and the bottom clamping unit, and two groups of synchronization units are provided accordingly.

[0010] As a further improvement and optimization of the present invention, the synchronization unit includes a guide rod vertically arranged in the clamping seat, a connecting seat is slidably mounted on the guide rod, a spring 1 located above the connecting seat is sleeved on the outside of the guide rod, the clamping head of the side clamping unit and the connecting seat are connected by a connecting rope 1, when the clamping head of the side clamping unit is clamped, the connecting seat is pulled up by the connecting rope 1, and the clamping head of the bottom clamping unit and the connecting seat are connected by a connecting rope 2, when the clamping head of the bottom clamping unit is clamped, the connecting seat is pulled up by the connecting rope 2;

[0011] A fixed pulley parallel to the clamping unit array circle is installed in the clamp seat, and a plurality of fixed pulleys are provided. The fixed pulleys are used to guide the turning of the connecting rope 1 and the connecting rope 2.

[0012] As a further improvement and optimization of the present invention, two groups of clamp mechanisms are provided, and an alternating mechanism is provided on the machine tool bed, and the alternating mechanism is used to drive the two groups of clamp mechanisms to be used alternately.

[0013] As a further improvement and optimization of the present invention, a fixed seat is installed on the machine tool bed, the base is slidably installed on the fixed seat, the sliding direction of the base is perpendicular to the sliding direction of the fixture assembly, a connecting rod is installed on the fixed seat, the base and the connecting rod form a sliding connection, and a spring three is provided on the outer sleeve of the connecting rod, and the elastic force of the spring three is used to drive the base back to the inside of the machine tool;

[0014] A slide seat is slidably mounted at the bottom of the base, the sliding direction of the slide seat is parallel to the sliding direction of the clamp assembly, two slide seats are arranged along their own sliding direction, a spring is arranged between the two slide seats, and plug blocks are extended from the opposite sides of the two slide seats;

[0015] Both sides of the fixing seat along the width direction are provided with insertion holes. Initially, the clamp mechanism is located inside the machine tool, and the insertion block is inserted into the insertion hole.

[0016] As a further improvement and optimization of the present invention, a push seat and a linear module 2 for driving the push seat to move are installed on the fixed seat, and the movement direction of the push seat is parallel to the sliding direction of the base;

[0017] The slide is provided with an inclined plane 1, the push seat is provided with a convex seat, and the convex seat is provided with an inclined plane 2 parallel to the inclined plane 1 on the side of the slide. When the push seat moves away from the machine tool, the inclined plane 1 contacts the inclined plane 2, and the movement of the push seat will drive the plug block to leave the socket through the cooperation of the inclined plane 1 and the inclined plane 2, and then the push seat will push the slide to move together, and the slide will move together with the clamp mechanism.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In this solution, double-head processing of shaft workpieces can be realized, and multiple processes can be processed at one time, which can improve the processing efficiency of shaft parts and save costs and processing time. On this basis, one of the cores of this solution lies in the fixture mechanism:

[0020] 1. The clamping seat is in the shape of a ring frame, and a notch is provided at its upper end. Its significance lies in that the shaft workpiece can be directly hoisted from top to bottom into the clamping seat. Compared with the common three-jaw chuck technology in the prior art, it is more convenient to place the shaft workpiece into the clamping seat and be clamped by the clamping unit. The three-jaw chuck technology requires the shaft workpiece to be inserted into the three-jaw chuck, which requires a larger space. It is very inconvenient if the shaft workpiece is too long.

[0021] 2. The clamping and releasing actions are realized by the extension and retraction of the clamping section of the clamping unit. This hierarchical arrangement relationship can make the tail clamping section and the middle clamping section retract into the head clamping section when the release action occurs, that is, the minimum length of the clamping unit is very short. At the same time, when the clamping action occurs, the tail clamping section and the middle clamping section can be extended, that is, the maximum length of the clamping unit is very large. Therefore, in this solution, the clamping range of the clamping mechanism is wider and can be applied to the clamping of shaft workpieces with larger and smaller diameters. In contrast, the existing three-jaw chuck technology has a clamping claw in the shape of a rod, which cannot be extended and retracted, and the clamping range is smaller than that of this solution.

[0022] 3. The hydraulic oil flows into the side clamping unit and the bottom clamping unit at the same time, so the clamping action of the two is synchronous. Therefore, the clamping action of the clamp head of the bottom clamping unit will pull the connecting seat upward through the connecting rope 2, and the clamping action of the clamp head of the side clamping unit will pull the connecting seat upward through the connecting rope 1. Therefore, the movement distance of the clamping action of the bottom clamping unit and the side clamping unit is consistent, and self-centering clamping can be achieved;

[0023] Furthermore, regardless of whether it is a bottom clamping unit or a side clamping unit, the movement distance of the chuck is equal to the movement distance of the connecting seat. Therefore, by monitoring the elastic force of spring one, the compression amount of spring one can be calculated, thereby obtaining the movement distance of the connecting seat and finally the movement distance of the chuck. That is, the movement distance of the clamping action of the chuck can be monitored by monitoring spring one through existing sensor technology to avoid clamping too tight or too loose.

[0024] In addition, the setting of the alternating mechanism can drive the two sets of clamping mechanisms to be used alternately, which can further improve the production line processing efficiency of the shaft workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the prior art;

[0026] Figure 2 It is a structural schematic diagram of the present invention;

[0027] Figure 3 Schematic diagram of the fixture structure Figure 1 ;

[0028] Figure 4 Schematic diagram of the fixture structure Figure 2 ;

[0029] Figure 5 It is a schematic diagram of the fixture assembly and the linear module 1;

[0030] Figure 6 is a side view of the clamp assembly;

[0031] Figure 7 It is a schematic diagram of the clamping unit, oil pipeline and synchronization unit;

[0032] Figure 8 is a schematic diagram of the clamping unit;

[0033] Fig. 9 is a schematic diagram of a synchronization unit;

[0034] Fig.10 is a schematic diagram of an alternating mechanism;

[0035] Fig.11 It is a schematic diagram of the push seat and the slide seat.

[0036] The reference numerals in the accompanying drawings are:

[0037] 100, clamp mechanism; 101, base; 102, linear module one; 103, clamp assembly; 104, clamp seat; 105, clamping unit; 1051, clamping section; 1052, chuck; 1053, hydraulic nozzle; 106, oil pipeline; 107, synchronization unit; 1071, guide rod; 1072, connecting seat; 1073, spring one; 1074, fixed pulley; 1075, connecting rope one; 1076, connecting rope two; 200, alternating mechanism; 201, slide seat; 202, spring two; 203, plug block; 204, fixed seat; 205, socket; 206, linear module two; 207, push seat; 2071, convex seat; 208, spring three. DETAILED DESCRIPTION

[0038] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0039] In this solution, the shaft workpiece does not rotate after being clamped, and the tool rotates to achieve the processing of the shaft workpiece, such as a horizontal milling machine and the like. Embodiment 1

[0040] Reference Figure 2-Figure 9 A double-head high-efficiency horizontal machine tool for processing shaft parts, including a clamping mechanism 100 for clamping the shaft workpiece and a processing system for processing the shaft workpiece, wherein the processing system is provided with two groups and is respectively located at the two ends of the clamping mechanism 100, which can process both ends of the shaft workpiece at the same time, can improve the efficiency of shaft processing, realize one-time processing of multiple processes, save costs and processing time, and at the same time, its structural design is reasonable, positioning is accurate, processing accuracy is high, and product qualification rate is improved. In addition, the machine tool has a high degree of automation, easy operation, and reduces human resource requirements. It is suitable for the needs of modern intelligent manufacturing production lines. See the following description for details. In addition, the processing system can be realized by existing technology and will not be elaborated.

[0041] Reference Figure 3 and Figure 4 The clamp mechanism 100 includes a base 101 installed on the machine tool bed, and a clamp assembly 103 and a linear module 102 for driving the clamp assembly 103 to move are slidably installed on the base 101. Furthermore, the clamp assembly 103 is provided with two groups along the sliding direction, and the linear module 102 is also provided with two groups accordingly. In addition, the linear module 102 and the linear module 2 206 mentioned later can be realized by the existing screw linear motion technology and will not be elaborated herein.

[0042] Reference Figure 5-Figure 7 The clamp assembly 103 includes a clamp seat 104 mounted on the base 101, and a clamping unit 105 is mounted on the clamp seat 104, wherein:

[0043] The clamping seat 104 is in the shape of an annular frame with a notch at its upper end. Its significance lies in that the shaft workpiece can be directly hoisted from top to bottom into the clamping seat 104. Compared with the common three-jaw chuck technology in the prior art, it is more convenient to place the shaft workpiece into the clamping seat 104 and be clamped by the clamping unit 105. The three-jaw chuck technology requires the shaft workpiece to be inserted into the three-jaw chuck, which requires a larger space and is very inconvenient if the shaft workpiece is too long.

[0044] The clamping units 105 are arranged in a circumferential array in several groups, preferably three groups. This scheme is explained using three groups as an example. In addition, the axis of the array circle of the three groups of clamping units 105 is parallel to the sliding direction of the clamp assembly 103, or the internal space of the clamp seat 104 is set into a circular shape, and the clamping units 105 can also be distributed in a circumferential array around this circular shape.

[0045] Reference Figure 7 and Figure 8 The clamping unit 105 includes clamping sections 1051 distributed radially along the array circle. The clamping sections 1051 are in the shape of a cylindrical barrel. The clamping sections 1051 include a first clamping section, a tail clamping section, and a middle clamping section arranged between the first clamping section and the tail clamping section. The middle clamping section is provided with at least one, wherein:

[0046] The first clamping section is fixed to the inner annular surface of the clamping seat 104, and a hydraulic nozzle 1053 is provided at the end of the first clamping section away from the axis centerline of the array circle. The tail clamping section is located on the side of the first clamping section facing the axis centerline of the array circle, and a clamp 1052 is provided at the end of the tail clamping section facing the axis centerline of the array circle. The area between the clamps 1052 in the three groups of clamping units 105 is named the clamping area.

[0047] An internal step is provided at one end of the clamping section 1051 facing the axis centerline of the array circle, and an external step is provided at the end of the clamping section 1051 away from the axis centerline of the array circle. Among two adjacent clamping sections 1051, the clamping section 1051 close to the axis centerline of the array circle is sleeved in the clamping section 1051 away from the axis centerline of the array circle, and the internal step on the clamping section 1051 away from the axis centerline of the array circle cooperates with the external step on the clamping section 1051 close to the axis centerline of the array circle to prevent the two adjacent clamping sections 1051 from detaching.

[0048] The hydraulic nozzles 1053 in the three groups of clamping units 105 are connected through oil pipelines 106. The ends of the oil pipelines 106 are connected to the hydraulic system. The hydraulic system can be realized by existing technology. When the hydraulic system drives the hydraulic oil into the clamping unit 105 through the oil pipelines 106, the clamping unit 105 can be driven to gradually stretch out, and the clamping area gradually shrinks to realize the clamping action. Conversely, the clamping unit 105 gradually shrinks, the clamping gradually becomes larger, and the clamping is released.

[0049] The above-mentioned clamping and releasing actions are realized by the extension and retraction actions of the clamping section 1051 of the clamping unit 105. This hierarchical nesting relationship can make the tail clamping section and the middle clamping section both retract into the head clamping section when the loosening action occurs, that is, the minimum length of the clamping unit 105 is very short. At the same time, when the clamping action occurs, the tail clamping section and the middle clamping section can both extend, that is, the maximum length of the clamping unit 105 is very large. Therefore, in this scheme, the clamping range of the clamping mechanism 100 is wider, and can be suitable for clamping shaft workpieces with larger diameters and smaller diameters. In contrast, the existing three-jaw chuck technology has a clamping claw in the shape of a rod that cannot be extended and retracted, and the clamping range is smaller than that of this scheme.

[0050] In a preferred embodiment, when clamping a shaft workpiece, the movement distances of the three groups of clamping units 105 need to be consistent in order to achieve the purpose of self-centering clamping. Figure 7 The distribution and naming of the three groups of clamping units 105 are as follows: one group of clamping units 105 is arranged vertically and is named bottom clamping units, and the remaining two groups of clamping units 105 are respectively located on the upper side of the bottom clamping units and are named side clamping units. In this way, after the shaft workpiece is hoisted and placed on the chuck 1052 of the bottom clamping unit through the notch, the shaft workpiece can be supported by this chuck 1052, and the robotic arm and other hoisting technologies can leave directly and wait for subsequent clamping actions, which is more convenient and quick.

[0051] A synchronization unit 107 is provided between the side clamping unit and the bottom clamping unit, and two groups of synchronization units 107 are provided accordingly.

[0052] Reference Fig. 9 The synchronization unit 107 includes a guide rod 1071 vertically arranged in the clamp seat 104, a connecting seat 1072 is slidably mounted on the guide rod 1071, and a spring 1073 located above the connecting seat 1072 is also sleeved on the outside of the guide rod 1071.

[0053] The clamping head 1052 of the side clamping unit is connected to the connecting seat 1072 via a connecting rope 1075. When the clamping head 1052 of the side clamping unit is in a clamping action, the connecting seat 1072 is pulled upward by the connecting rope 1075.

[0054] The clamping head 1052 of the bottom clamping unit is connected to the connecting seat 1072 via a second connecting rope 1076. When the clamping head 1052 of the bottom clamping unit is in a clamping action, the connecting seat 1072 is pulled upward by the second connecting rope 1076.

[0055] In addition, a fixed pulley 1074 parallel to the array circle of the clamping unit 105 is installed in the clamping seat 104, and a plurality of fixed pulleys 1074 are provided to guide the turning of the connecting rope 1 1075 and the connecting rope 2 1076.

[0056] The working process of the synchronization unit 107 is as follows:

[0057] The hydraulic oil flows into the side clamping unit and the bottom clamping unit at the same time, so the clamping action of the two occurs synchronously. Therefore: the clamping action of the clamp 1052 of the bottom clamping unit will pull the connecting seat 1072 upward through the connecting rope 2 1076, and the clamping action of the clamp 1052 of the side clamping unit will pull the connecting seat 1072 upward through the connecting rope 1075. Therefore: the movement distance of the clamping action of the bottom clamping unit and the side clamping unit is consistent, and self-centering clamping can be achieved. Embodiment 2

[0058] Reference Figure 2 In order to further improve the processing efficiency, two groups of clamp mechanisms 100 are provided, and an alternating mechanism 200 is also provided on the machine tool bed to drive the two groups of clamp mechanisms 100 to be used alternately. In this way, the processing efficiency of the production line can be greatly improved.

[0059] Reference Figure 4 , Fig.10 and Fig.11 A fixed seat 204 is installed on the machine tool bed, and the base 101 is slidably installed on the fixed seat 204, and the sliding direction of the base 101 is perpendicular to the sliding direction of the clamp assembly 103. A connecting rod is installed on the fixed seat 204, and the bottom of the base 101 forms a sliding connection with the connecting rod. A spring three 208 is provided on the outer sleeve of the connecting rod, and the elastic force of the spring three 208 is used to drive the base 101 to return to the inside of the machine tool.

[0060] A slide 201 is slidably installed at the bottom of the base 101. The sliding direction of the slide 201 is parallel to the sliding direction of the clamp assembly 103. Two slides 201 are arranged along their own sliding direction. A spring 202 is arranged between the two slides 201. Insert blocks 203 extend from the opposite sides of the two slides 201.

[0061] The fixing seat 204 is provided with sockets 205 on both sides along the width direction. When the clamping mechanism 100 is located inside the machine tool, the plug block 203 is inserted into the socket 205 to limit the movement of the clamping mechanism 100. Its significance lies in that vibration is inevitably generated during the processing of the shaft workpiece. Therefore, through the cooperation between the plug block 203 and the socket 205, the clamping mechanism 100 can be made more stable and the impact of vibration can be greatly reduced.

[0062] A push seat 207 and a second linear module 206 for driving the push seat 207 to move are installed on the fixed seat 204 . The movement direction of the push seat 207 is parallel to the sliding direction of the base 101 .

[0063] The slide 201 is provided with an inclined plane 1, the push seat 207 is provided with a convex seat 2071, and the convex seat 2071 is provided with an inclined plane 2 parallel to the inclined plane 1 on the side facing the slide 201. When the push seat 207 moves away from the machine tool, the inclined plane 1 contacts the inclined plane 2, and the movement of the push seat 207 drives the plug 203 to leave the socket 205 through the cooperation of the inclined plane 1 and the inclined plane 2. Then the push seat 207 pushes the slide 201 to move together, thereby moving the clamp mechanism 100 together, that is, pulling The clamping mechanism 100 is guided to leave the machine tool. During this process, the end of the insert block 203 will contact the side of the fixed seat 204 where the socket 205 is provided. The spring 202 cannot release the elastic force. After the shaft workpiece is clamped and the shaft workpiece on another set of clamping mechanisms 100 is processed, the other set of clamping mechanisms 100 leaves the machine tool. Under the elastic force of the spring 3 208, the clamping mechanism 100 that left before returns to the machine tool with the shaft workpiece to be processed until the insert block 203 is reinserted into the socket 205.

[0064] It should be noted that two protrusions 2071 can be provided on the push seat 207, corresponding to the two groups of clamp mechanisms 100 respectively. In this way, each time the push seat 207 moves, it will first push one group of clamp mechanisms 100 back to the machine tool, and then push the other group of clamp mechanisms 100 away from the machine tool. Of course, the alternating mechanism 200 can also be provided with two groups, corresponding to the two groups of clamp mechanisms 100 respectively.

[0065] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A double-head high-efficiency horizontal machine tool for machining shaft parts, comprising a clamping mechanism (100) for clamping the shaft workpiece and a machining system for machining the shaft workpiece, wherein the machining system is provided with two groups and is respectively located at the two ends of the clamping mechanism (100), characterized in that: The clamp mechanism (100) comprises a base (101) mounted on a machine tool bed, a clamp assembly (103) and a linear module (102) for driving the clamp assembly (103) to move are slidably mounted on the base (101), the clamp assembly (103) comprises a clamp seat (104) mounted on the base (101), a clamping unit (105) is mounted on the clamp seat (104), the clamp seat (104) is in the shape of an annular frame, a notch is provided at the upper end of the clamp seat (104), and a plurality of groups of clamping units (105) are arranged in an array along a circumferential direction, and the axis center line of the array circle is parallel to the sliding direction of the clamp assembly (103); The clamping units (105) are distributed along the radial direction of the array circle. One end of the clamping unit (105) is fixed to the inner annular surface of the clamping seat (104) and is provided with a hydraulic nozzle (1053), and the other end is close to the axis of the array circle and is provided with a clamp (1052). The clamping unit (105) includes a plurality of clamping sections (1051) in the shape of a cylindrical barrel. Among two adjacent clamping sections (1051), the clamping section (1051) close to the axis of the array circle is sleeved in the clamping section (1051) away from the axis of the array circle. The hydraulic nozzles (1053) in all the clamping units (105) are connected through an oil pipeline (106), and the end of the oil pipeline (106) is connected to the hydraulic system. An end of the clamping section (1051) facing the axis center line of the array circle is provided with an internal step, and an end of the clamping section (1051) facing away from the axis center line of the array circle is provided with an external step; The clamping units (105) are provided with three groups, which are respectively a bottom clamping unit arranged vertically and two groups of side clamping units located above and on the sides of the bottom clamping units. A synchronization unit (107) is provided between the side clamping units and the bottom clamping units, and two groups of synchronization units (107) are provided accordingly. The synchronization unit (107) comprises a guide rod (1071) vertically arranged in the clamping seat (104), a connecting seat (1072) being slidably mounted on the guide rod (1071), a spring 1 (1073) being sleeved on the outside of the guide rod (1071) and being located above the connecting seat (1072), a connection rope 1 (1075) being used to connect the clamping head (1052) of the side clamping unit and the connecting seat (1072), when the clamping head (1052) of the side clamping unit is in a clamping action, the connecting seat (1072) is pulled upward by the connecting rope 1 (1075), and a connection rope 2 (1076) is used to connect the clamping head (1052) of the bottom clamping unit and the connecting seat (1072), when the clamping head (1052) of the bottom clamping unit is in a clamping action, the connecting seat (1072) is pulled upward by the connecting rope 2 (1076); A fixed pulley (1074) parallel to the array circle of the clamping unit (105) is installed in the clamping seat (104), a plurality of fixed pulleys (1074) are provided, and the fixed pulleys (1074) are used to guide the turning of the connecting rope 1 (1075) and the connecting rope 2 (1076).

2. A double-head high-efficiency horizontal machine tool for machining shaft parts according to claim 1, characterized in that: Two groups of clamp assemblies (103) are arranged along the sliding direction, and two groups of linear modules (102) are arranged correspondingly.

3. A double-head high-efficiency horizontal machine tool for machining shaft parts according to claim 1, characterized in that: Two groups of clamp mechanisms (100) are provided, and an alternating mechanism (200) is provided on the machine tool bed. The alternating mechanism (200) is used to drive the two groups of clamp mechanisms (100) to be used alternately.

4. A double-head high-efficiency horizontal machine tool for machining shaft parts according to claim 3, characterized in that: A fixed seat (204) is installed on the machine tool bed, and the base (101) is slidably installed on the fixed seat (204). The sliding direction of the base (101) is perpendicular to the sliding direction of the clamp assembly (103). A connecting rod is installed on the fixed seat (204). The base (101) and the connecting rod are slidably connected. A spring three (208) is provided on the outer sleeve of the connecting rod. The elastic force of the spring three (208) is used to drive the base (101) to return to the inside of the machine tool. A slide seat (201) is slidably mounted at the bottom of the base (101); the sliding direction of the slide seat (201) is parallel to the sliding direction of the clamp assembly (103); two slide seats (201) are arranged along their own sliding direction; a second spring (202) is arranged between the two slide seats (201); and plug blocks (203) are extended from opposite sides of the two slide seats (201); Both side surfaces of the fixing seat (204) along the width direction are provided with insertion holes (205); initially, the clamp mechanism (100) is located inside the machine tool, and the insertion block (203) is inserted into the insertion hole (205).

5. A double-head high-efficiency horizontal machine tool for machining shaft parts according to claim 4, characterized in that: A push seat (207) and a second linear module (206) for driving the push seat (207) to move are mounted on the fixed seat (204), and the movement direction of the push seat (207) is parallel to the sliding direction of the base (101); The slide seat (201) is provided with an inclined plane 1, the push seat (207) is provided with a convex seat (2071), and a convex seat (2071) is provided with an inclined plane 2 parallel to the inclined plane 1 on a side of the convex seat (2071) facing the slide seat (201). When the push seat (207) moves away from the machine tool, the inclined plane 1 contacts the inclined plane 2, and the movement of the push seat (207) drives the plug (203) to leave the socket (205) through the cooperation of the inclined plane 1 and the inclined plane 2. Then, the push seat (207) pushes the slide seat (201) to move together, and the slide seat (201) moves together with the clamp mechanism (100).

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